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 [Search a list of Patent Appplications for class 399]   CLASS 399,ELECTROPHOTOGRAPHY
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SECTION I - CLASS DEFINITION

This class provides for electrophotographically reproducing an original (e.g., document) by the action of light directly from the original to a photoconductive member whose electrical conductivity, electrical charge, magnetic condition, or electrical emissivity of a photoconductive medium is selectively altered by the action of light to produce an electrostatic latent image which persists after imaging based upon differences in such electrical property. The latent image is made visible by development; and the developed image may be made permanent by transfer and fixing, or fixing. This class provides for the subcombinations directed to charging, developing, transferring, fixing, cleaning, or sheet feeding for an electrophotographic apparatus whether or not the imaging light is directly from the original. This class also provides for methods and means for perfecting the apparatus provided above (e.g., control of electrophotographic process, diagnostics, operator interface, etc.).

(1) Note. The apparatus herein classified generally involves the application of a uniform electrostatic charge to a photoresponsive medium comprising a conductive support coated with a photoconductive insulator. Latent electrostatic images are formed by exposure of an original directly onto the photoresponsive medium through an optical lens system. The charge applied to the light sensitive medium is selectively discharged by exposure and remains only on selected portions of the photoresponsive medium (i.e., those areas which correspond to the original image). The photoresponsive medium is moved to a developing station where toner is applied to the charged areas of the photoresponsive medium forming a visible image thereupon. The photoresponsive medium is then moved to a transfer station where the toned image is transferred to a copy substrate (e.g., a piece of paper). The toned substrate is then fed to a fixing station where the toner is permanently affixed to the paper, usually by heat or pressure. The photoresponsive medium is then moved to a cleaning station where untransferred toner and any leftover electrical charge are removed so another copy cycle can begin.
(2) Note. The use of the limitation "directly" above excludes image formation systems in which an image of an original is detected and converted to electrical signals which are subsequently utilized to generate further illumination signals to optically form an image of the original on the medium. This excluded subject matter may be found, for example, in Class 347, subclasses 112+, and in Class 358, subclasses 400-304 and more specifically 401. However, the nominal recitation of a light image to an electrical signal or an equivalent statement would not serve to exclude subject matter from Class 399. Also, Electrophotography has no modification of converted electrical signals. OTHER CLASSIFICATION SYSTEMS Each subclass definition may contain an OTHER CLASSIFICATION SYSTEMS listing that is to be used for informational purposes only. These classification listings may change at any time after their publication and are therefore not guaranteed to be current. In addition, the classification listing does not necessarily indicate the sole relationship between the U.S. Patent Classification System and foreign classifications. Even where a single classification is listed for a single U.S. subclass, a one-to-one correlation should not be inferred. As a result, information contained therein is considered to be only a guide to related subject matter. Types of other classification systems may include IPC6 which indicates an International Patent Classification (sixth edition) of the World Intellectual Property Organization (WIPO), JPO/FI which indicates the Japanese Patent Office and its File Index (FI is a subdivision of the IPC with related subject matter) classifications, or the European Patent Classification (EPC) which indicates the European Patent Office"s classification and also further subdivides the IPC into related subject matter.

SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS

ELECTROPHOTOGRAPHY APPARATUS CLASSIFIED ELSEWHERE

In Class 250, Radiant Energy, subclass 315.3 provides for xerographic copying methods and apparatus which utilize invisible radiation, subclass 317.1 provides for infrared or thermal image document pattern copying methods or apparatus, and subclasses 582 and 583 provides for methods and apparatus to expose by radiant energy a recording detector. Copying methods are classified in Class 430, Radiation Imagery Chemistry: Process, Composition, or Product Thereof.

ELECTROPHOTOGRAPHY APPARATUS COMBINED WITH ANOTHER STRUCTURE OR STRUCTURES AND CLASSIFIED ELSEWHERE

Claims which recite apparatus for photographing something other than an original or carrier as herein defined and also for copying an original or carrier are classified in Class 396, Photography, especially subclasses 310+, 322+, and 429+, or Class 346, Recorders. Class 386, Motion Video Signal Processing for Recording or Reproducing, provides for claims directed generally to recording or reproducing of a motion video signal, especially subclass 342, which is directed to photocopying that includes forming a television image by utilizing a cathode-ray tube. Class 396, Photography, subclasses 429+, provides for patents where only a nominal cathode-ray tube is recited. The combination of a detailed register with a broadly or specifically claimed copier is classified in Class 235, Registers. (See the first paragraph of the Class 235 class definition.)

ELECTROPHOTOGRAPHY SUBCOMBINATIONS CLASSIFIED ELSEWHERE

Class 226, Advancing Material of Indeterminate Length, especially subclasses 52+, provides for film advancing mechanisms where no more than a nominal optical or photocopying element is claimed. Photographic lights and projection lights, per se, are in Class 362, Illumination, subclasses 3+ and 257+. Class 271, Sheet Feeding or Delivering, provides for sheet feeding or delivering means where no specific electrophotographic structure is recited. Class 359, Optics: Systems (Including Communication) and Elements, provides for lenses in subclasses 642+, reflectors in subclasses 838+, and optical absorption filters in subclasses 885+.

SECTION III - REFERENCES TO OTHER CLASSES

SEE OR SEARCH CLASS:

15Brushing, Scrubbing, and General Cleaning,   for devices for merely cleaning the photosensitive medium, particularly subclasses 1.51+ for electrostatic cleaning.
34Drying and Gas or Vapor Contact With Solids,   for devices for treating a coating, including fusing or coalescing a particulate coating by solvent vapor treatment, per se.
74Machine Element or Mechanism,   subclasses 2+ for related subject matter concerning automatic operation or control of machine elements and mechanisms.
101Printing,   for printers where the ink or imaging material is affected by an electrostatic field.
118Coating Apparatus,   for apparatus for producing configured coatings applied to a support material under the control or direction of electrical, magnetic, or radiant energy applied to the coating material in a predetermined pattern; for applying a light sensitive coating to a support material; for development or transfer, by a coating operation, of images made by electric photography, or for applying protective coatings to the developed or transferred image; also any or all of these combined with aftertreatment of the developed image or cleaning of the light sensitive medium, especially subclasses 51 , 58+, 72+, 200+, 308+, 620+, 720+, and 722+.
134Cleaning and Liquid Contact With Solids,   for methods of cleaning the photosensitive medium, particularly subclasses 1+ for cleaning including the application of electrical, radiant, or wave energy.
137Fluid Handling,   appropriate subclasses for generic fluid handling apparatus which may be used to apply liquid toner to a latent image to make it visible.
178Telegraphy,   subclasses 77+ for telegraphic devices combined with other instruments (e.g., an electrophotographic copier).
188Brakes,   subclasses 381+ for generic braking devices which may be used to stop scanning devices, for example, while minimizing vibrations.
192Clutches and Power-Stop Control,   subclasses 116.5+ for generic stop mechanisms which may be used for power stop control of electrophotographic movable platen scanners.
204Chemistry: Electrical and Wave Energy,   appropriate subclasses for methods and apparatus for forming or developing an image by electrolysis, electro-osmosis, electrophoresis, or cathode sputtering, and combinations of electric photographic apparatus therewith.
206Special Receptacle or Package,   subclass 316.1 for special receptacles for an optical or photographic means.
226Advancing Material of Indeterminate Length,   especially subclasses 52+ for film advancing means in a copier where no more than one optical element is claimed and where no detailed optics are recited, and appropriate subclasses for means to advance, for example, photoresponsive electrophotographic copy paper on rolls.
235Registers,   for a detailed register in combination with a broadly or specifically claimed copier.
236Automatic Temperature and Humidity Regulation,   subclasses 44+ for means to control the humidity of paper used in an electrophotographic copier or the atmosphere within the copier, for example.
239Fluid Sprinkling, Spraying, and Diffusing,   appropriate subclasses for apparatus used to apply liquid developer to latent image-bearing material.
242Winding, Tensioning, or Guiding,   subclasses 159+ and 324+ for apparatus used to wind or unwind rolls of photoresponsive electrographic material, reeling and unreeling means of the type employed in still picture apparatus and for the type used in motion picture devices, for subject matter where no cooperation between an optical element and reeling mechanism is recited, where no detailed optical element is set forth, and where only one nominally claimed optical element is present.
250Radiant Energy,   subclass 315.3 for methods and apparatus for xerographic copying by use of invisible radiation, subclass 316.1 for related electrostatic recorders using infrared or thermal radiation to form the latent image of an original which is copied by electrophotography, subclasses 317.1+ for document copies relying upon infrared or thermal patterns of the document transferred to the copy paper, and subclasses 582 and 583 for an apparatus to expose, by invisible radiation generally, a recording detector generally.
252Compositions,   for subject matter, especially subclass 501.1 photosensitive electrically conductive or emissive compounds, used as electrophotographic photoresponsive media, as well as for other compositions used in electrophotographic devices.
261Gas and Liquid Contact Apparatus,   subclasses 75+ for generic apparatus which places a document or item to be developed in contact with liquid developer or vice versa.
269Work Holders,   subclasses 289+ for detailed holders for an original.
270Sheet-Material Associating,   subclasses 1.1+ for generic sheet material associating with printing.
271Sheet Feeding or Delivering,   for generic sheet feeding or delivering apparatus, where no specific optical or photographic structure is set forth.
323Electricity: Power Supply or Regulation Systems,   for power supplies, per se.
346Recorders,   subclasses 74.2+ for related magnetographic recording devices, subclasses 107.1+ for light or beam recording, and subclasses 150.1+ for related electrostatic recording apparatus and processes.
347Incremental Printing and Symbolic Information,   subclasses 1 through 109for ink jets, particularly subclass 55 for applying an electric field ejection intermittently; subclasses 111 through 170 for electric marking, particularly subclass 158 for delivering to the recording medium visible particles to develop a latent image; subclasses 171 through 223 for thermal printers; and subclasses 224 through 264 for light (i.e., ROS scanners).
352Optics: Motion Pictures,   for photocopying apparatus and methods involving a motion picture camera or motion picture projector.
353Optics: Image Projectors,   appropriate subclasses for picture carriers, projection printing of composite images, and for editing or auxiliary viewing devices associated with image projectors.
356Optics: Measuring and Testing,   appropriate subclasses for optical measurement and test instruments used in diagnostic testing of an electrophotographic copier.
358Facsimile and Static Presentation Processing,   subclasses 1.1 through 1.18for static presentation processing (e.g., processing data for printer, etc.) and subclass 300 for electrostatic or electrolytic facsimile recording apparatus which may be combined with electrophotographic copiers. Class 399, Electrophotography, has no modification of converted electrical signals.
359Optics: Systems (Including Communication) and Elements,   appropriate subclasses for optical elements of an electrophotographic copier"s illumination and image formation system, especially subclasses 642+ for lenses, in subclasses 838+ for reflectors, and subclasses 885+ for optical absorption filters.
361Electricity: Electrical Systems and Devices,   subclasses 212+ for means to discharge or prevent accumulation of static electric charge and subclasses 225+ for electric charge generating or conducting means.
362Illumination,   subclasses 3+ and 257+ for photographic and projection light source subcombinations which may include condenser lenses having no other photocopying structure, and subclasses 227+ for plural sources of illumination.
365Static Information Storage and Retrieval,   subclasses 48+ for subject matter related to magnetographic electrophotography.
369Dynamic Information Storage and Retrieval,   subclass 125 for having photographic storage medium (e.g., variable density or area).
374Thermal Measuring and Testing,   subclasses 1+ for thermal calibration devices.
377Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems,   subclasses 1+ for applications of counters, including subclass 8 for counting flat articles (e.g., sheets).
378X-Ray or Gamma Ray Systems or Devices,   subclasses 28+ for xeroradiographic subject matter.
380Cryptography,   subclass 54 for changing the visible appearance of an object to encrypt visible markings.
386Motion Video Signal Processing for Recording or Reproducing,   subclasses 224, 233, 242, and 314-342 for recording of motion video signal on a medium in general.
396Photography,   especially subclasses 310+ , 322+, and 429+ for photocopying in combination with photographing of an object other than a sheet or film strip and also for copying a sheet or film strip by first transmitting an image of the original to the surface of a nominally claimed cathode-ray tube and then photographing the image on the surface of the cathode-ray tube.
427Coating Processes,   especially subclasses 458+ for related subject matter involving the direct application of electrical, magnetic, or wave energy to form, cure, or otherwise affect electrophotographic coatings.
430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   appropriate subclasses for radiation imagery chemistry, process, composition, or product, especially subclasses 31+ for related electrophotographic processes; for purposes of classification, Class 430, subclasses 31+, controls over Class 399; where the process claimed is expressed in terms of Class 399 apparatus or subcombinations thereof, placement is appropriate in Class 399.
454Ventilation,   subclasses 49+ for ventilation systems used as part of an electrophotographic machine to remove harmful vapors produced by the machine.
474Endless Belt Power Transmission Systems or Components,   appropriate subclasses for generic systems and components which may be used to drive electrophotographic, photoresponsive, endless webs or belts.
492Roll or Roller,   subclass 8 for specific magnet or electromagnetic structure.
700Data Processing: Generic Control Systems or Specific Applications,   subclasses 1+ for generic data processing control systems.
702Data Processing: Measuring, Calibrating, or Testing,   appropriate subclasses for computer data processing for measuring, calibrating, or testing that may include photographic devices.
713Electrical Computers and Digital Processing Systems: Support,   subclasses 182 through 186for system access control based on cryptographic user identification.
714Error Detection/Correction and Fault Detection/Recovery,   appropriate subclasses for generic diagnostic testing involving data processing.

SECTION IV - GLOSSARY

ELECTROSTATOGRAPHY

The formation and utilization of latent electrostatic charge patterns for recording or reproducing patterns in viewable form, for example: reproducing information from an original or carrier by selectively exposing a photoconductive member to an electrical or magnetic condition that produces a latent image whereby the image is developed to a visible image, then transferred and fixed from the photoconductive member to a medium.

LIGHT SOURCE

The source of illumination for the copier. The light source includes filters, reflectors, screens, and other light modifiers used to affect the spectral distribution, spatial distribution, and intensity of the illumination.

IMAGE

The representation of an object (e.g.,original, carrier) produced by the transmission or reflection of light incident upon the original.

IMAGE-BEARING MEMBER

A substrate for holding an electrostatic charge pattern or a toner image.

IMAGE, LATENT

The invisible image produced by the action of light alone or with other electrostatic charge-producing means on, or in, a photoreceptor. A latent image may be made visible by development.

IMAGING

Forming an image that is a reproduction of an original.

MACHINE

A complete unit, in itself, for imaging an original or carrier onto a receiver. It may also include means for developing, transferring, and fixing the image, as well as means for handling the record carrier on which the image is fixed.

MASTER

(a) The negative or positive original from which reproductions are made, (b) a microform copy used for the production of copies, or (c) a copy from which additional reproductions are made.

NEGATIVE

A visible image on a copy material in which the dark portions of an original appear light and the light portions appear dark.

ORIGINAL

Any object (generally two-dimensional) from which a copy is made by forming an image thereof on a photoconductor.

PHOTOCONDUCTIVE MATERIAL

A material that is an insulator in the dark and conducts electricity in proportion to the amount of impinging light or actinic radiation. This is usually provided as a layer of electrically conductive material on a conductive support. During use, the electrical conductor is charged (sensitized) in the dark, and light (in image configuration) allows or causes the electrically conductive layer to conduct so that the charge leaks through to the conductive layer leaving a charge pattern corresponding to the original image (electrostatic latent image).

PHOTOCONDUCTIVE MEMBER

A medium whose electrical conductivity, electrical charge, magnetic condition, or electrical emissivity is selectively altered by the action of electromagnetic radiation during imaging.

PLATEN

A flat or curved piece of rigid material on or against which an original is placed for imaging the original onto a photoconductive member.

TONER

Charged material (e.g., finely divided powder; i.e., usually thermoplastic or pigmented polymer particles), ink, or magnetic particles used in electrostatic processes to make visible a latent image and which may be treated (e.g., fused, dried, etc.) to render the image permanent. Toner can be charged by triboelectric action, by the direct application of charge (e.g., corona), or by inducing the charge through the action of the electrostatic latent image. The material may include or exclude a carrier element and may also be called "marking particles" or "developer material."

SUBCLASSES

[List of Patents for class 399 subclass 1]    1COMBINED WITH DIVERSE SUBJECT MATTER:
 This subclass is indented under the class definition.  Subject matter wherein an electrophotographic device is combined with another art device or structure having an added purpose or independent utility other than to perfect an electrophotographic device and which combination is not provided for elsewhere.

SEE OR SEARCH CLASS:

178Telegraphy,   subclasses 77+ for an electrophotographic copier combined with means for electronically sending a copy of the original from the copier as well as making a copy thereof.
347Incremental Printing of Symbolic Information, for diverse printers (i.e., ink-jet, thermal, LED, LCD),   per se.
358Facsimile and Static Presentation Processing,   subclass 300 for electrostatic or electrolytic facsimile recording apparatus.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
G03G15/04for exposing (i.e., transmitting the information given by the original image to the recording material).
G03G15/22involving multiple steps.
JPOFIG03G15/22 103Dfor integrating in a facsimile.
  
[List of Patents for class 399 subclass 2]    2With diverse image formation:
 This subclass is indented under subclass 1.  Subject matter wherein a means or method is provided for forming an image by an apparatus other than that provided for in this class.
(1) Note. This subject matter, for example, may include an electrophotographic device that is combined with a raster output scanner used as an alternative exposure unit.
(2) Note. Diverse subject matter may have techniques of image formation using an embossing.
  
[List of Patents for class 399 subclass 3]    3Electrostatic:
 This subclass is indented under subclass 2.  Subject matter wherein the diverse image is formed by a charge pattern deposited onto or discharged from a medium forming a latent image.

SEE OR SEARCH CLASS:

346Recorders,   subclasses 107.1+ for related photographic subject matter.
347Incremental Printing of Symbolic Information,   subclasses 112+ wherein an image is formed by depositing an electrostatic charge on or removing an electrostatic charge from a medium.
358Facsimile and Static Presentation Processing,   subclass 300 for electrostatic or electrolytic facsimile recording apparatus.
  
[List of Patents for class 399 subclass 4]    4Light (e.g., laser, LED, LCD):
 This subclass is indented under subclass 3.  Subject matter wherein the discharge is caused by visible radiant energy.

SEE OR SEARCH CLASS:

347Incremental Printing of Symbolic Information,   subclasses 129+ for LED"s, subclasses 134+ for LCD"s, and subclasses 224+ for lasers.
  
[List of Patents for class 399 subclass 5]    5Shared optics:
 This subclass is indented under subclass 4.  Subject matter wherein a common optical component or light source is used for the image formation of this class and the diverse image.
  
[List of Patents for class 399 subclass 6]    6Composite image:
 This subclass is indented under subclass 4.  Subject matter wherein an image produced by diverse imaging apparatus is combined with an image that is produced by the action of light directly from an original.

SEE OR SEARCH THIS CLASS, SUBCLASS:

194,for a composite image by light exposure directly from an original.
  
[List of Patents for class 399 subclass 7]    7On or adjacent to platen:
 This subclass is indented under subclass 4.  Subject matter wherein an image source, other than an original provided for in this class, is used in addition to or in place of the original.
  
[List of Patents for class 399 subclass 8]    8REMOTE MONITORING:
 This subclass is indented under the class definition.  Subject matter wherein a means or method is provided for transmitting or receiving data about a condition of an electrophotographic device or component thereof to an external location.

SEE OR SEARCH CLASS:

340Communications: Electrical,   appropriate subclasses for related subject matter.
379Telephonic Communications,   subclasses 102+ for signalling over a telephone line for control of a nontelephone device at a remote location.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
JPOFIG03G21/00 396for central control or remote control over multiple apparatus.
EPCG03G15/00C10for remote control machines (e.g., by a host).
  
[List of Patents for class 399 subclass 9]    9DIAGNOSTICS:
 This subclass is indented under the class definition.  Subject matter wherein a means or method is provided for detecting or analyzing (a) a condition that is outside the normal operating condition or (b) a malfunction or potential malfunction of an electrophotographic device or component thereof.
(1) Note. For example, this subject matter may include detection of an access door not being closed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

8,for remote monitoring of an electrophotographic device.
38+,for control of the electrophotographic processes (e.g., charging, exposure, developing, transferring, fixing, and cleaning).
75+,for control of machine operations.
91+,for internal machine environmental control.
107+,for an electrophotographic device having particular structure.
127+,for supplemental electrophotographic processes.
130+,for image formation, per se.
343+,for cleaning an imaging surface.
361+,for document handling.

SEE OR SEARCH CLASS:

73Measuring and Testing,   subclasses 1.01+ for generic instrument calibration devices and methods.
324Electricity: Measuring and Testing,   subclasses 452+ for testing a material property using electrostatic phenomenon (this type of test may be employed to determine the humidity or electrical insulating properties of copy paper, a photosensitive material, etc.) and subclasses 457+ which employ means to measure an electrostatic field, such a field being an integral property of the electrophotographic process.
356Optics: Measuring and Testing,   subclasses 445+ for testing the reflectivity of the copy paper, for example, to determine proper exposure, toner concentration, etc.
374Thermal Measuring and Testing,   subclasses 1+ for thermal calibration devices.
377Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems,   subclasses 28+ for diagnostic testing of counters.
714Error Detection/Correction and Fault Detection/Recovery,   subclasses 100+ for generic diagnostic testing involving data processing.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
JPOFIG03G21/00 386for displaying and alarming.
G03G21/00 388for control of electrographic apparatus.
G03G21/00 500for special measures to malfunction.
G03G21/00 520for a safety device of electrographic apparatus.
EPCG03G15/00Dfor self-diagnostics, malfunction, and lifetime display.
  
[List of Patents for class 399 subclass 10]    10Log report:
 This subclass is indented under subclass 9.  Subject matter wherein data is recorded or stored (e.g., in memory) of an analyzed performance, a malfunction, or a series of abnormal events of an electrophotographic device or component.
(1) Note. For example, this subject matter may include printing of status.

SEE OR SEARCH THIS CLASS, SUBCLASS:

83,for job mode selection with memory.

SEE OR SEARCH CLASS:

365Static Information Storage and Retrieval,   subclass 48 for subject matter related to magnetographic electrophotography.
369Dynamic Information Storage and Retrieval,   subclass 125 for a photographic storage medium (e.g., variable density or area).
  
[List of Patents for class 399 subclass 11]    11Service mode:
 This subclass is indented under subclass 9.  Subject matter wherein a technician operates or tests or calibrates the machine.
(1) Note. For example, this subject matter may include operating the apparatus or component without producing a copy.

SEE OR SEARCH THIS CLASS, SUBCLASS:

8,for operating or testing the machine from a remote location (i.e., over a network or phone line).
107+,for removal or insertion of components.
126,for mechanical adjustments.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
JPOFIG03G21/00 510for check and maintenance of electrographic apparatus.
  
[List of Patents for class 399 subclass 12]    12Unit or part identification:
 This subclass is indented under subclass 9.  Subject matter wherein a means or method is provided for detecting or distinguishing an attachable or replaceable part of a particular type or color or manufacturer or condition.
(1) Note. For example, this subject matter may include a product identification of a replacement part that would otherwise be physically attachable to the apparatus (e.g., toner cartridges for different colors).
(2) Note. For example, this subject matter may include determining if a component is new or used.
  
[List of Patents for class 399 subclass 13]    13Component present or mounted:
 This subclass is indented under subclass 9.  Subject matter wherein a means or method is provided for distinguishing whether or not a component is either present or properly attached in an operative manner.

SEE OR SEARCH THIS CLASS, SUBCLASS:

9,for detecting an access door ajar.
16,for diagnostics of document handling.
24+,for diagnostics of consumable materials.
  
[List of Patents for class 399 subclass 14]    14Unacceptable copy coverage
 This subclass is indented under subclass 9.  Subject matter wherein a means or method is provided for determining that an acceptable copy cannot be produced because of the condition or nature of the original or an unsuitable feature selection or a machine default condition.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
JPOFIG03G21/00 390for applicability and inapplicability.
  
[List of Patents for class 399 subclass 15]    15By inspection of copied image:
 This subclass is indented under subclass 9.  Subject matter wherein an image on a copy medium is analyzed.
(1) Note. This subject matter may include a special test image for visual inspection by the operator.

SEE OR SEARCH THIS CLASS, SUBCLASS:

72,for controlling formation of a test image.
  
[List of Patents for class 399 subclass 16]    16Document handling:
 This subclass is indented under subclass 9.  Subject matter wherein a means or method is provided for analyzing a movement of a sheet medium through a traveled path of an electrophotographic device or component; or for analyzing the presence or absence of a sheet or recording medium, or holder therefor.
(1) Note. For example, this subject matter may include forms of movement such as feeding, inverting, stacking, sorting, collating, and conveying.

SEE OR SEARCH THIS CLASS, SUBCLASS:

361+,for normal machine operation for handling documents.

SEE OR SEARCH CLASS:

226Advancing Material of Indeterminate Length,   appropriate subclasses for means to advance electrophotographic photoresponsive copy paper.
236Automatic Temperature and Humidity Regulation,   subclasses 44+ for means to control the humidity of paper used in an electrophotographic copier, or the atmosphere within the copier to improve performance of the apparatus.
242Winding, Tensioning, or Guiding,   appropriate subclasses for subject matter related to winding and unwinding electrophotographic photoresponsive webs, etc.
270Sheet-Material Associating,   subclasses 1.1+ for related document handling subject matter.
271Sheet Feeding or Delivering,   appropriate subclasses for related subject matter.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
JPOFIG03G15/00 526by detecting and correcting malfunctions related to paper handling.
G03G15/00 530by measuring the characteristics of a means of discharging copies, of a sorter, and of a collator.
EPCG03G15/00Jfor detecting malfunctions relating to paper handling (e.g., jams).
G03G15/00J1for detecting multiple sheets.
  
[List of Patents for class 399 subclass 17]    17Of original:
 This subclass is indented under subclass 16.  Subject matter wherein the handling of the document to be reproduced is analyzed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

14,for analyzing the condition of the image to be reproduced.
  
[List of Patents for class 399 subclass 18]    18Malfunction detection responsive:
 This subclass is indented under subclass 16.  Subject matter wherein the electrophotographic device performs a corrective operation in addition to or beyond displaying a warning or shuts down in response to the document handling abnormality.
(1) Note. This subject matter may include, for example, performing a cleaning operation in response to a jam or the automatic displacement of parts.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
EPCG03G15/00C3for machine control (e.g., microprocessor control).
  
[List of Patents for class 399 subclass 19]    19Job recovery:
 This subclass is indented under subclass 18.  Subject matter wherein a means or method is provided for completing a job run in progress or accounting for lost copies after an interruption or shutdown.
  
[List of Patents for class 399 subclass 20]    20Purge:
 This subclass is indented under subclass 18.  Subject matter wherein a means or method is provided for continuing sheet feeding despite a malfunction.
(1) Note. This subject matter may include, for example, continued feeding of a sheet downstream from a jam.
(2) Note. This subject matter may also include feeding out sheets left in an intermediate tray.
  
[List of Patents for class 399 subclass 21]    21Jam:
 This subclass is indented under subclass 16.  Subject matter wherein a means or method is provided for analyzing whether or not a sheet medium is traveling normally through a path.
  
[List of Patents for class 399 subclass 22]    22Misstrip of copy:
 This subclass is indented under subclass 21.  Subject matter wherein a means or method is provided for detecting whether or not the copy medium has failed to separate from an imaging or fixing member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

315,for details of the separation discharger (i.e., passive separation by neutralizing the transfer charge).
323,for stripping a copy during fixing.
398,for stripping from photoconductive member when delivering from transfer position.
,OTHER CLASSIFICATION SYSTEMS:
,IPC6 G03G 15/00, for an electrographic process using a charge pattern.
,EPC G03G 15/00J2, for detecting missed stripping from a xerographic drum, band, or platen.
  
[List of Patents for class 399 subclass 23]    23Copy medium supply:
 This subclass is indented under subclass 16.  Subject matter wherein a means or method is provided for determining the need for replacement of copy medium.
  
[List of Patents for class 399 subclass 24]    24Consumable:
 This subclass is indented under subclass 9.  Subject matter wherein a means or method is provided for determining the usable lifespan or exhaustion of a component or perishable material.
(1) Note. For example, this subject matter may also include maintenance counters.

SEE OR SEARCH THIS CLASS, SUBCLASS:

13,for component present or mounted.
23,for "out of paper" maintenance.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
JPOFIG03G21/00 512for determining the time for repairing and replacing.
  
[List of Patents for class 399 subclass 25]    25Process cartridge:
 This subclass is indented under subclass 24.  Subject matter wherein the component is a single unit that contains both a photoconductive member and an apparatus for one or more of charging, exposing, developing, transferring, and cleaning.

SEE OR SEARCH THIS CLASS, SUBCLASS:

111+,for process cartridge unit having particular modular or displaceable structure.
  
[List of Patents for class 399 subclass 26]    26Photoconductive member:
 This subclass is indented under subclass 24.  Subject matter wherein a means or method is provided that determines whether or not a light-responsive member or a portion thereof is defective or needs replacement.
(1) Note. A light-responsive member has a particular physical, electrical, or magnetic characteristic which enables the member to change its (a) electrical resistivity or (b) conductivity or (c) charge or (d) emissivity or (e) magnetic condition or (f) persistent internal polarization upon exposure to radiant energy in the form of light.

SEE OR SEARCH THIS CLASS, SUBCLASS:

116+,for photoconductive member having particular modular or displaceable structure.
161,for advancing a renewable section of photoconductor.
  
[List of Patents for class 399 subclass 27]    27Toner:
 This subclass is indented under subclass 24.  Subject matter wherein a means or method is provided for determining whether or not replenishment or replacement is, or may be, required for developer material.
(1) Note. For example, this subject matter may include carrier particles.

SEE OR SEARCH THIS CLASS, SUBCLASS:

35,for diagnostics of cleaning a waste toner container.
49,for detection of toner involving plural control processes.
61+,for detection of toner in a developing unit.
99+,for toner removal.
106,for a toner cartridge.
120,for a new and waste toner container.
129,for supplemental exposure or charging of residual toner.
134,for image formation with photoconductive toner.
224,for adding colored toner.
239+,for application of liquid developer.
253,for conditioning dry toner.
254+,for mixing dry toner.
258+,for supplying new toner.
265+,for application of dry developer.
359,for supplying reclaimed toner to the developing device.
409,for binding copies by toner.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/08for solid developer.
JPOFIG03G15/08 114for detection of a toner level.
EPCG03G15/08H2for detection of toner level.
  
[List of Patents for class 399 subclass 28]    28Color:
 This subclass is indented under subclass 27.  Subject matter wherein an analysis is made of plural colors of toner.
  
[List of Patents for class 399 subclass 29]    29Deterioration or developability of toner:
 This subclass is indented under subclass 27.  Subject matter wherein a means or method is provided for determining defects or abnormalities in material used to visualize a latent image.

SEE OR SEARCH THIS CLASS, SUBCLASS:

27,for an out-of-toner condition.
30,for the out-of-toner condition being determined by the concentration detector.
  
[List of Patents for class 399 subclass 30]    30By concentration detector:
 This subclass is indented under subclass 27.  Subject matter wherein the need for replenishment or replacement is determined by a means or method that analyzes a ratio of toner particles to carrier particles.

SEE OR SEARCH THIS CLASS, SUBCLASS:

58+,for concentration control.
  
[List of Patents for class 399 subclass 31]    31Image forming component:
 This subclass is indented under subclass 9.  Subject matter wherein a means or method is provided that analyzes an abnormal condition for forming a latent or toner image.

SEE OR SEARCH THIS CLASS, SUBCLASS:

50,for controlling charging in response to a detected condition.
66,for controlling a charge applied for transferring an image.
  
[List of Patents for class 399 subclass 32]    32Of exposure system (e.g., lamp, scanning, erase):
 This subclass is indented under subclass 31.  Subject matter wherein a means or method is provided for analyzing a light source, light projection, or scanning system.
  
[List of Patents for class 399 subclass 33]    33Fixing (e.g., over-temperature protection):
 This subclass is indented under subclass 9.  Subject matter wherein a means or method is provided for analyzing an abnormal condition of permanently fixing a toner image to a copy medium or substrate.

SEE OR SEARCH THIS CLASS, SUBCLASS:

67+,for condition-responsive control of fusing.
91,for a fire extinguisher internal to the machine.
122,for fixing unit with particular modular or displaceable structure.
320+,for fixing (e.g., fusing), per se.

SEE OR SEARCH CLASS:

374Thermal Measuring and Testing,   subclasses 1+ for thermal calibration devices.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/20for fixing.
JPOFIG03G15/20 110for preventing burn damage of the copy sheet.
  
[List of Patents for class 399 subclass 34]    34Cleaning:
 This subclass is indented under subclass 9.  Subject matter wherein a means or method is provided for analyzing the performance of a residual toner removal system.

SEE OR SEARCH THIS CLASS, SUBCLASS:

71,for control of cleaning during the electrophotography process.
123,for particular structure of a cleaning unit.
149,for combined development and cleaning by a single component.
245,for self-cleaning, with electrodes, a liquid development application member.
327,for cleaning of a fixing member.
343+,for cleaning an imaging surface (i.e., photoconductive member), including a cleaning member cyclically movable into and out of contact with the imaging surface.

SEE OR SEARCH CLASS:

15Brushing, Scrubbing, and General Cleaning,   subclasses 1.51+ for electrostatic cleaning and subclasses 300.1+ for air blast or suction which may be used to clean electrophotographic, photoresponsive imaging surfaces.
134Cleaning and Liquid Contact With Solids,   subclass 1 for cleaning applications of electric, wave, ray, or radiant energy.
  
[List of Patents for class 399 subclass 35]    35Waste toner container:
 This subclass is indented under subclass 34.  Subject matter wherein a means or method is provided for determining the condition (e.g., fullness, presence, absence, etc.) of a holder for removed toner.

SEE OR SEARCH THIS CLASS, SUBCLASS:

13,for a component present or mounted.
27,for diagnostic of consumables (e.g., toner).
49,for detection of toner involving plural control processes.
61+,for detection of toner in a developing unit.
99+,for toner removal.
106,for a toner cartridge.
120,for a new and waste toner container.
129,for supplemental exposure or charging of residual toner.
134,for image formation with photoconductive toner.
224,for adding colored toner.
239+,for application of liquid development.
253,for conditioning dry toner.
254+,for mixing dry toner.
258+,for supplying new toner.
265+,for application of dry development.
359,for supplying reclaimed toner to the developing device.
409,for binding copies by toner.

SEE OR SEARCH CLASS:

340Communications: Electrical,   subclass 612 for condition responsive indication of fluent material levels.
  
[List of Patents for class 399 subclass 36]    36Of motive power or driven unit:
 This subclass is indented under subclass 9.  Subject matter wherein a means or method is provided that analyzes the mechanical movement of a motor operation or motor-driven component.
(1) Note. The component being driven may be a drum or the belts of a photoconductive member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

167,for driving a photoconductive member.
  
[List of Patents for class 399 subclass 37]    37Power supply:
 This subclass is indented under subclass 9.  Subject matter wherein a means or method is provided that analyzes an electrical source or its connection to an electrophotographic device or component.

SEE OR SEARCH THIS CLASS, SUBCLASS:

88+,for machine operations with power supply.
168+,for charging of a photoconductive member.

SEE OR SEARCH CLASS:

323Electricity: Power Supply or Regulation Systems,   for a power supply, per se.
361Electricity: Electrical Systems and Devices,   subclasses 212+ for means to discharge or prevent accumulation of static electric charge and subclasses 225+ for electric charge generating or conducting means.
  
[List of Patents for class 399 subclass 38]    38CONTROL OF ELECTROPHOTOGRAPHY PROCESS:
 This subclass is indented under the class definition.  Subject matter wherein a means or method is provided that senses a condition or change of condition and effects an image-forming operation of an electrophotography process (e.g., charging, exposing, developing, transfer, fixing, or cleaning), component, or device in response to the sensed or changed condition.
(1) Note. For example, this subject matter includes the following controlling arrangements: control of ion modulation, forming a new latent image for plural developing or transferring in response to voltage detection, control of treatment of developed image prior to transfer, reformation of latent image for producing multiple copies, and enablement of image formation in response to detection of charge, exposure, or concentration. For other controlling arrangements within the electrophotographic apparatus which do not involve the electrophotographic process, see SEARCH THIS CLASS, SUBCLASS in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

9+,for diagnostics of an electrophotographic device.
75+,for control of machine operations.
92,for controlling a cooling fan in response to sensed temperature.
107+,for electrophotographic device having particular structure.
128,for condition responsive control of fatigue treatment (e.g., supplemental charge or exposure).
130+,for image formation, per se.
187,for condition responsive control of erase light.
343+,for cleaning an imaging surface.
361+,for control of an automatic document feeder in response to detection of original.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
JPOFIG03G15/00 303for image quality control.
EPCG03G15/00C6for measuring the copy material characteristics (e.g., weight, thickness).
G03G15/00C7for measuring the photoconductor characteristics (e.g., temperature, a test patch).
  
[List of Patents for class 399 subclass 39]    39Color balance:
 This subclass is indented under subclass 38.  Subject matter wherein a means or method is provided for controlling each of a group of individual image formations that are combined to produce a color copy.
(1) Note. This subject matter may include controlling charging or exposure or developing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

28,for analyzing a malfunction or potential malfunction of color reproduction.
54,for color selection control.
112,for modular or displaceable color process cartridge unit.
178+,for formation of color separation images.
184,for color image editing of a selectable area.
223+,for development (e.g., applicators) of a color image.
298+,for transfer of a color image.
326,for fixing or fusing a color image.
344,for cleaning a color-image-bearing surface.

SEE OR SEARCH CLASS:

430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   subclasses 42.1 through 47.5to produce a multicolor production (i.e., plural colors named or more than one color identified).

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/01for producing multicolored copies.
JPOFIG03G15/01for producing multicolored copies.
EPCG03G15/01Dfor details of unit.
G03G15/01D6for developing.
  
[List of Patents for class 399 subclass 40]    40Of overlapped toner images:
 This subclass is indented under subclass 39.  Subject matter wherein a second or subsequent color toner image is developed on the previously developed image(s).
  
[List of Patents for class 399 subclass 41]    41Single detector for plural toners:
 This subclass is indented under subclass 39.  Subject matter wherein color balance is achieved by regulating the amount of colored toner being applied to a latent image.

SEE OR SEARCH THIS CLASS, SUBCLASS:

27,for diagnostic of consumables (e.g., toner).
35,for diagnostics of cleaning a waste toner container.
61+,for detection of toner in a developing unit.
224,for adding colored toner.
253,for conditioning dry toner.
254+,for mixing dry toner.
258+,for supplying new toner.
359,for supplying reclaimed toner to the developing device.
  
[List of Patents for class 399 subclass 42]    42Artificial intelligence:
 This subclass is indented under subclass 38.  Subject matter wherein an electrophotography system or method has the capacity to perform one or more of the functions of recognition, speech signal processing, knowledge processing (i.e., propositional logic, reasoning, learning, self-improvement), complex operations of a manipulator (e.g., robot* control), or inexact reasoning (e.g., fuzzy logic).

SEE OR SEARCH CLASS:

706Data Processing: Artificial Intelligence,   appropriate subclasses for artificial intelligence, per se.
  
[List of Patents for class 399 subclass 43]    43Responsive to number of copies or passage of time:
 This subclass is indented under subclass 38.  Subject matter wherein a means or method is provided that effects a change in condition-responsive control according to an amount of copies produced or a passage of time.
(1) Note. A control cycle being run every (n) times a copy is produced is classified with that control.
(2) Note. A change in the set value of a process (e.g., charging, exposure, mode according to number of copies, etc.) that is otherwise not condition-responsive controlled is classified below. See SEARCH THIS CLASS, SUBCLASS below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

237,for adding liquid toner in response to the number of copies.
258,for adding dry toner in response to the number of copies.
  
[List of Patents for class 399 subclass 44]    44Having temperature or humidity detection:
 This subclass is indented under subclass 38.  Subject matter wherein a means or method is provided that compensates or adjusts a control parameter in response to a temperature or humidity condition within the electrophotographic device.
(1) Note. This subclass does not include temperature control of fusing in response to fusing temperature detection. For fusing temperature control subject matter, see SEARCH THIS CLASS, SUBCLASS below.
(2) Note. For example, a voltage applied to the charger is adjusted according to the temperature of the photoconductive member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

69+,for temperature control of fusing.
94+,for internal machine temperature.
97,for internal machine humidity.
  
[List of Patents for class 399 subclass 45]    45Responsive to copy media characteristic:
 This subclass is indented under subclass 38.  Subject matter wherein a means or method is provided that compensates or adjusts a control parameter of the electrophotographic device in response to the detection of copy media type or attribute.
  
[List of Patents for class 399 subclass 46]    46Of plural processes:
 This subclass is indented under subclass 38.  Subject matter wherein a means or method is provided for a controlling operation of two or more image-forming processes (i.e., charging, exposing, developing, or transfer) in response to a sensed or changed condition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

39+,for control of color balance controlling two or more processes.
  
[List of Patents for class 399 subclass 47]    47Having detection of exposure light:
 This subclass is indented under subclass 46.  Subject matter wherein the sensed condition is light reflected from or passed through an original.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
EPCG03G15/00C5for measuring the original characteristics (e.g., contrast, density).
  
[List of Patents for class 399 subclass 48]    48Having detection of photoconductor potential:
 This subclass is indented under subclass 46.  Subject matter wherein the sensed condition is an electrostatic potential of a photoconductive member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

73,for sensing means (e.g., electrometer or electrostatic voltmeter).

SEE OR SEARCH CLASS:

324Electricity: Measuring and Testing,   subclasses 452+ for testing a material property using electrostatic phenomenon (this type of test may be employed to determine the humidity or electrical insulating properties of copy paper, a photosensitive material, etc.) and subclasses 457+ which employ means to measure an electrostatic field, such a field being an integral property of the electrophotographic process.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
EPCG03G15/00C7Efor characteristics for an electrical parameter (e.g., voltage).
  
[List of Patents for class 399 subclass 49]    49Having detection of toner (e.g., patch):
 This subclass is indented under subclass 46.  Subject matter wherein a means or method is provided that senses developing material.
(1) Note. Developing material may be applied in the form of a test patch or a developed image.
(2) Note. Developing material may be detected in a developing apparatus before application to the latent image.

SEE OR SEARCH THIS CLASS, SUBCLASS:

27,for diagnostic of consumables (e.g., toner).
35,for diagnostics of cleaning a waste toner container.
41,for detecting plural colors of toner for concentration control.
61+,for detection of toner in a developing unit.
99+,for toner removal.
106,for a toner cartridge.
120,for a new and waste toner container.
129,for supplemental exposure or charging of residual toner.
134,for image formation with photoconductive toner.
224,for adding colored toner.
239+,for application of liquid developer.
253,for conditioning dry toner.
254+,for mixing dry toner.
258+,for supplying new toner.
265+,for application of dry developer.
359,for supplying reclaimed toner to the developing device.
409,for binding copies by toner.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
EPCG03G15/00C7for measuring photoconductor characteristics (e.g., temperature, a test patch).
G03G15/00C8for measuring the characteristics of an image on the copy material.
  
[List of Patents for class 399 subclass 50]    50Control of charging:
 This subclass is indented under subclass 38.  Subject matter wherein a charge or potential level of a photoconductive member is adjusted in response to the sensed condition.
(1) Note. This subject matter is for the charging of a photoconductive member only. For other charging (e.g., charging of toner), see SEARCH THIS CLASS, SUBCLASS below.
(2) Note. This subject matter includes, for example, using light exposure to control the charge level.

SEE OR SEARCH THIS CLASS, SUBCLASS:

88+,for machine operations with power supply.
100,for particle or contaminant control in removal of toner from a charging member (e.g., corona wire).
115,for charging unit having a modular or displaceable structure.
128+,for supplemental process (e.g., fatigue treatment) involving charging.
153,for simultaneous charging and exposure.
168+,for charging, per se.
296,for exposure or charging of a developed image prior to transfer.

SEE OR SEARCH CLASS:

323Electricity: Power Supply or Regulation Systems,   for power supply, per se.
361Electricity: Electrical Systems and Devices,   for subclasses 212+ for means to discharge or prevent accumulation of static electric charge and subclasses 225+ for electric charge generating or conducting means.
430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   appropriate subclasses for radiation imagery chemistry, process, composition, or product, especially Cross-Reference Art Collection 902 for cross-reference art collections involving charging.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/02for sensitizing (i.e., laying down a uniform charge).
JPOFIG03G15/02 102for arrangements for the control or the circuits.
EPCG03G15/02Cfor an arrangement for controlling the amount of a charge.
  
[List of Patents for class 399 subclass 51]    51Control of exposure:
 This subclass is indented under subclass 38.  Subject matter wherein a means or method is provided for controlling the illumination of an original in response to the sensed condition.
(1) Note. This subject matter includes regulating the amount of voltage or current to a lamp that illuminates an original or to a shutter in the optical path, or regulating the amount of light used in the formation of the latent image.

SEE OR SEARCH THIS CLASS, SUBCLASS:

177+,for exposure, per se.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/043for controlling illumination or exposure.
JPOFIG03G15/04 120for controlling the exposure.
EPCG03G15/052Efor controlling illumination or exposure.
  
[List of Patents for class 399 subclass 52]    52In response to light from original:
 This subclass is indented under subclass 51.  Subject matter wherein the illumination is controlled in response to the detected image density of an original.
  
[List of Patents for class 399 subclass 53]    53Control of developing:
 This subclass is indented under subclass 38.  Subject matter wherein a means or method is provided that controls the application of toner to the latent image in response to detection of an image-forming condition.
(1) Note. This subject matter may include, for example, dispensing toner in response to a sensed condition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

222+,for developing, per se.

SEE OR SEARCH CLASS:

118Coating Apparatus,   for coating, per se.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/08for using a solid developer (e.g., powder developer).
EPCG03G15/08H6for testing or measuring developer properties or quality (e.g., charge, size, flowability).
  
[List of Patents for class 399 subclass 54]    54Color selection:
 This subclass is indented under subclass 53.  Subject matter wherein color of toner is selected in response to the sensed condition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

28,for analyzing a malfunction or potential malfunction of color reproduction.
39+,for balance control of color.
112,for modular or displaceable color process cartridge unit.
178+,for formation of color separation images.
184,for color image editing of a selectable area.
223+,for development (e.g., applicators) of a color image.
298+,for transfer of a color image.
326,for fixing or fusing of a color image.
344,for cleaning a color-image-bearing surface.
  
[List of Patents for class 399 subclass 55]    55Bias control:
 This subclass is indented under subclass 53.  Subject matter wherein voltage or current used to aid or influence development is controlled.

SEE OR SEARCH THIS CLASS, SUBCLASS:

240,for liquid application member with applied bias.
241,for liquid development with electrode influencing the attraction of liquid developer.
270+,for magnetic brush-type application member with applied bias.
285,for roller-type application member with applied bias.
291,for powder cloud applicator with electrode(s) influencing the attraction of dry developer.
293,for fluidized bed applicator with electrode(s) influencing the attraction of dry developer.
295,for cascade applicator with electrode(s) influencing the attraction of dry developer.
314,for electrostatic transfer with applied bias.
354,for cleaning an imaging surface by a fibrous brush with applied voltage.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/06for developing.
EPCG03G15/06Cfor controlling the potential of the developing electrode.
  
[List of Patents for class 399 subclass 56]    56In response to potential of latent image:
 This subclass is indented under subclass 55.  Subject matter wherein the bias is controlled in response to the sensed potential of a latent image to be developed.
(1) Note. This subject matter also includes a "self-biased" electrode.
  
[List of Patents for class 399 subclass 57]    57Liquid:
 This subclass is indented under subclass 53.  Subject matter wherein a liquid level, concentration, or additive is controlled in response to a detected condition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

237+,for liquid development.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/10for using a liquid developer.
JPOFIG03G15/10 115for detecting the liquid developer concentration.
EPCG03G15/10D1for detection or control of the toner (liquid) concentration.
  
[List of Patents for class 399 subclass 58]    58Concentration control:
 This subclass is indented under subclass 53.  Subject matter wherein an amount or percentage of toner within the toner and carrier mixture is controlled.
(1) Note. The concentration is generally effected by adding new toner to the developing unit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

30,for toner concentration detector.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/10for using a liquid developer.
JPOFIG03G15/08 115for detecting and controlling the toner concentration.
EPCG03G15/08H1for detection or control of the toner concentration.
  
[List of Patents for class 399 subclass 59]    59Setting of reference value:
 This subclass is indented under subclass 58.  Subject matter wherein a means or method is provided for designating a threshold level in response to a toner-carrier concentration.
  
[List of Patents for class 399 subclass 60]    60Detection of developed image:
 This subclass is indented under subclass 58.  Subject matter wherein the concentration control is effected according to the sensed amount or density of toner that has been applied to a latent image.

SEE OR SEARCH THIS CLASS, SUBCLASS:

74,for a densitometer detail in an electrophotographic device.
  
[List of Patents for class 399 subclass 61]    61Detection of toner in developing unit:
 This subclass is indented under subclass 58.  Subject matter wherein the concentration is controlled in response to detecting a property of the developer.
(1) Note. For example, this subject matter includes electrical property of toner or charge/mass ratio (Q/M).

SEE OR SEARCH THIS CLASS, SUBCLASS:

27,for diagnostic of consumables (e.g., toner).
35,for diagnostics of cleaning a waste toner container.
49,for detection of toner involving plural control processes.
99+,for toner removal.
106,for a toner cartridge.
120,for a new and waste toner container.
129,for supplemental exposure or charging of residual toner.
134,for image formation with photoconductive toner.
224,for adding colored toner.
239+,for application of liquid developer.
253,for conditioning dry toner.
254+,for mixing dry toner.
258+,for supplying new toner.
265+,for application of dry developer.
359,for supplying reclaimed toner to the developing device.
409,for binding copies by toner.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/10for using a liquid developer.
JPOFIG03G15/08 507Kfor detecting and testing.
  
[List of Patents for class 399 subclass 62]    62Concentration detection:
 This subclass is indented under subclass 61.  Subject matter wherein the concentration is controlled in response to a detected toner and carrier mixture ratio.

SEE OR SEARCH THIS CLASS, SUBCLASS:

30,for toner concentration detector.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/10for using a liquid developer.
EPCG03G15/08H1Efor a concentration being measured by electrical means.
  
[List of Patents for class 399 subclass 63]    63Magnetic detector:
 This subclass is indented under subclass 62.  Subject matter wherein a means or method is provided for detecting the concentration by using the magnetic properties of toner or carrier material.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/10for using a liquid developer.
EPCG03G15/08H1Mfor a concentration being measured by magnetic means.
  
[List of Patents for class 399 subclass 64]    64Optical detector:
 This subclass is indented under subclass 62.  Subject matter wherein a means or method is provided for detecting concentration by using a light source.

SEE OR SEARCH THIS CLASS, SUBCLASS:

118,for optics with particular modular or displaceable structure.
137,for optical intermediate storage of original image.
196+,for variable magnification during exposure.
200+,for automatic adjustment of an optical component due to a change in magnification.
209,for a repositioning of a scanning carriage due to a change in scanning length.
216,for slit exposure by pivoting mirror.
218,for specific lens during exposure.
219,for fiber optics used during exposure.

SEE OR SEARCH CLASS:

206Special Receptacle or Package,   subclass 316.1 for special receptacles for an optical or photographic means.
356Optics: Measuring and Testing,   appropriate subclasses for optical measurement and test instruments.
359Optics: Systems (Including Communication) and Elements,   subclass 12 for copying by holographic means.
385Optical Waveguides,   for optical waveguiding element, per se, particularly subclass 116 for imaging (i.e., with coherent fiber structure and includes shaping, enhancing, and correcting).

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/10for using a liquid developer.
EPCG03G15/08H1Lfor a concentration being measured by optical means.
  
[List of Patents for class 399 subclass 65]    65Including sample holder:
 This subclass is indented under subclass 64.  Subject matter wherein the toner to be detected is attracted to a detection location by an applied voltage.
  
[List of Patents for class 399 subclass 66]    66Control of transfer:
 This subclass is indented under subclass 38.  Subject matter wherein a means or method is provided for controlling a parameter which causes a toner image to move from one surface or member to another.
(1) Note. A parameter may be for example voltage, current, or pressure.
(2) Note. Included herewithin is control of separation and electrical discharge of copy medium to remove charge applied by transfer.

SEE OR SEARCH THIS CLASS, SUBCLASS:

101,for particle or contaminant control of toner on a transfer member.
121,for transfer unit with particular modular or displaceable structure.
154,for image formation with transfer of latent image.
297+,for transferring a toner image, per se.
388+,for feeding a copy to the transfer position.
397+,for delivering a copy from the transfer position.
  
[List of Patents for class 399 subclass 67]    67Control of fixing:
 This subclass is indented under subclass 38.  Subject matter wherein a means or method is provided for controlling a parameter which causes a developed image to be permanently attached to a copy medium or substrate.
(1) Note. A parameter may be, for example, voltage, current, or pressure.
(2) Note. Common applications for attaching an image to a copy medium are heat, pressure, and solvent.

SEE OR SEARCH THIS CLASS, SUBCLASS:

33,for over-temperature protection during fixing.
91,for a fire extinguisher internal to the machine.
122,for fixing unit with particular modular or displaceable structure.
320+,for fixing (e.g., fusing), per se.

SEE OR SEARCH CLASS:

374Thermal Measuring and Testing,   subclasses 1+ for thermal calibration devices.
  
[List of Patents for class 399 subclass 68]    68Conveyance of copy:
 This subclass is indented under subclass 67.  Subject matter wherein a speed at which the copy is transported through the fixing arrangement is regulated.

SEE OR SEARCH THIS CLASS, SUBCLASS:

361+,for document handling, per se.

SEE OR SEARCH CLASS:

374Thermal Measuring and Testing,   subclasses 1+ for thermal calibration devices.
  
[List of Patents for class 399 subclass 69]    69Temperature control:
 This subclass is indented under subclass 67.  Subject matter wherein a means or method is provided for controlling the amount of thermal energy that is applied to permanently fix a developed image to a copy medium or substrate.

SEE OR SEARCH THIS CLASS, SUBCLASS:

33,for over-temperature protection during fixing.
91,for a fire extinguisher internal to the machine.
122,for fixing unit with particular modular or displaceable structure.
320+,for fixing (e.g., fusing), per se.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/20for fixing (e.g., by using heat).
JPOFIG03G15/20 109for detecting and regulating the fixing temperature.
EPCG03G15/20H2P3for controlling or regulating the fixing temperature.
G03G15/20H2P3Aespecially the axial heat repartition.
  
[List of Patents for class 399 subclass 70]    70Warmup or standby mode:
 This subclass is indented under subclass 69.  Subject matter wherein the temperature of a fixing unit is (a) controlled on power initiation or (b) set to a predetermined temperature when the fixing unit is idle.

SEE OR SEARCH CLASS:

374Thermal Measuring and Testing,   subclasses 1+ for thermal calibration devices.
  
[List of Patents for class 399 subclass 71]    71Control of cleaning:
 This subclass is indented under subclass 38.  Subject matter wherein a means or method is provided for controlling a parameter which causes removal of developed material from an imaging surface after an image is transferred to a copy medium.
(1) Note. A parameter may be, for example, voltage, current, or pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

34+,for cleaning diagnostics.
123,for particular structure of cleaning unit.
149,for combined development and cleaning by a single component.
245,for self-cleaning with electrodes a liquid development application member.
327,for cleaning of fixing member.
343+,for cleaning an imaging surface (i.e. photoconductive member), including a cleaning member cyclically movable into and out of contact with the imaging surface.

SEE OR SEARCH CLASS:

15Brushing, Scrubbing, and General Cleaning,   subclasses 1.51+ for electrostatic cleaning and subclasses 300.1+ for air blast or suction which may be used to clean electrophotographic, photoresponsive imaging surfaces.
134Cleaning and Liquid Contact With Solids,   subclasses 1+ for cleaning applications of electric, wave, ray, or radiant energy.
  
[List of Patents for class 399 subclass 72]    72Forming test image:
 This subclass is indented under subclass 38.  Subject matter wherein a means or method is provided for creating a latent or toner test image that can be detected.

SEE OR SEARCH THIS CLASS, SUBCLASS:

15,for inspection of copied image.
  
[List of Patents for class 399 subclass 73]    73Electrometer detail:
 This subclass is indented under subclass 38.  Subject matter wherein a means or method is provided for measuring a potential or charge level of a photoconductive member.
(1) Note. The electrometer may also be called an electrostatic voltmeter.

SEE OR SEARCH THIS CLASS, SUBCLASS:

48,for detection of photoconductor potential.

SEE OR SEARCH CLASS:

324Electricity: Measuring and Testing,   for electrical measuring and testing, per se.
  
[List of Patents for class 399 subclass 74]    74Densitometer detail:
 This subclass is indented under subclass 38.  Subject matter wherein an arrangement is provided for measuring an optical density of toner.
(1) Note. The optical density is the negative logarithm of the percent transmittance (or reflectance) or a transparent material (or opaque). For example, photographic transmission, photographic reflection, visual transmission of a material, etc.

SEE OR SEARCH CLASS:

356Optics: Measuring and Testing,   for optical measuring and testing, per se.
  
[List of Patents for class 399 subclass 75]    75MACHINE OPERATION:
 This subclass is indented under the class definition.  Subject matter wherein a means or method is provided for performing the basic cyclic operation necessary for the apparatus to run.

SEE OR SEARCH THIS CLASS, SUBCLASS:

9+,for diagnostics of an electrophotographic device.
38+,for control of the electrophotographic processes (e.g., charging, exposure, developing, transferring, fixing, and cleaning).
91+,for internal machine environmental control.
107+,for electrophotographic device having particular structure.
127+,for supplemental electrophotographic processes.
130+,for image formation, per se.
343+,for cleaning an imaging surface.
361+,for document handling.

SEE OR SEARCH CLASS:

235Registers,   for registers, per se, include attachments to machines where the purpose is to ascertain or count the number of movements thereof.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
G03G21/00for an arrangement not provided for by groups 13/00 to 19/00 (e.g., cleaning or elimination of residue).
JPOFIG03G21/00 370for control shared by components in the electrographic apparatus and control of the entire apparatus.
G03G21/00 388for control of electrographic apparatus.
G03G21/00 502for structure of a mechanical means adapted for controlling the electrographic apparatus.
EPCG03G15/00Cfor machine (e.g., regulating different parts of the machine, multimode copiers, microprocessor control).
  
[List of Patents for class 399 subclass 76]    76Sequential control:
 This subclass is indented under subclass 75.  Subject matter wherein the cyclic operation actuates the various components of the apparatus in the proper timing and sequence for producing a copy.
(1) Note. Normal electrophotographic device functions, such as xerographic and paper handling, are classified below.

SEE OR SEARCH CLASS:

235Registers,   for registers, per se, include attachments to machines where the purpose is to ascertain or count the number of movements thereof.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G21/14for an electronic sequencing control.
JPOFIG03G21/00 372for timing by simultaneous control.
  
[List of Patents for class 399 subclass 77]    77Programmed:
 This subclass is indented under subclass 76.  Subject matter wherein the timing and sequence are provided by computer processing by a list of software instructions.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G21/14for electronic sequencing control.
EPCG03G21/14for electronic sequencing control.
  
[List of Patents for class 399 subclass 78]    78Reference signal (e.g., pulse train):
 This subclass is indented under subclass 76.  Subject matter wherein the timing and sequence are provided by a generated series of clock pulses or a plurality of timed control signals.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G21/14for electronic sequencing control.
EPCG03G21/14Bfor sequencing control wherein control pulses are generated by the mechanical movement of parts of the machine.
  
[List of Patents for class 399 subclass 79]    79Accounting:
 This subclass is indented under subclass 75.  Subject matter wherein a means or method is provided that authorizes, counts, or registers an amount of copy medium produced from an electrophotographic device.
(1) Note. For example, this subject matter may include vending, renting, or charging a customer.

SEE OR SEARCH CLASS:

235Registers,   for registers, per se, include attachments to machines where the purpose is to ascertain or count the number of movements thereof.
377Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems,   subclasses 13 through 16for accounting of machine or apparatus operating or monitoring time.
705Data Processing: Financial, Business Practice, Management, or Cost/Price Determination,   subclasses 400+ for cost or price calculations.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G21/02for counting the number of copies, Billing.
JPOFIG03G21/00 392for control on producing multiple number of copies; arrangement for collecting the coping fees.
G03G21/00 394for structure of the counter used for electrographic apparatus.
EPCG03G21/02for counting the number of copies, Billing.
  
[List of Patents for class 399 subclass 80]    80User access:
 This subclass is indented under subclass 79.  Subject matter wherein the authorization is provided by identification (e.g., ID number or key card).

SEE OR SEARCH THIS CLASS, SUBCLASS:

366,for restricted use based only on a property of a document or original to be copied.
  
[List of Patents for class 399 subclass 81]    81Operator interface (e.g., display control panel):
 This subclass is indented under subclass 75.  Subject matter wherein an input or output arrangement is provided for communicating with an operator of the electrophotographic device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

138,for operator adjusted density of an image formation.
158,for display of developed image.
182+,for editing color images.
387,for copy length adjustment.

SEE OR SEARCH CLASS:

361Electricity: Electrical Systems and Devices,   subclasses 679.21 through 679.3for computer related housing or mounting assemblies with display support.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for electrographic process using a charge pattern.
EPCG03G15/00C4for user-machine interface; Display panels; Control console.
  
[List of Patents for class 399 subclass 82]    82Job mode:
 This subclass is indented under subclass 75.  Subject matter wherein a means or method is provided for selecting document handling functions to be performed on a group of documents by a sequence of operations.
(1) Note. For example, document handling functions may include simplex or duplex, one or both sides, transparencies, number of copies, collate or stack, magnification, etc.
(2) Note. This subject matter may include selection of a color to be used or a "default mode setting," in addition to other attributes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

203,for plural exposure modes.
367,for plural modes of operation for an automatic document feeder.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for electrographic process using a charge pattern.
JPOFIG03G15/01Rfor setting, changing, and displaying the mode.
G03G21/00 376for selection and display of copy mode.
G03G21/00 378for automatic selection of mode.
G03G21/00 380for guidance selecting a copy mode.
G03G21/00 384for changing the control according to changes of copy mode.
  
[List of Patents for class 399 subclass 83]    83Having memory:
 This subclass is indented under subclass 82.  Subject matter wherein the job mode is selected from or retained in an electronic storage unit.
(1) Note. This subject matter may include a removable device (e.g., integrated circuit card).

SEE OR SEARCH THIS CLASS, SUBCLASS:

10,for storage of data on the operation of an electrophotographic device (i.e., log report).

SEE OR SEARCH CLASS:

365Static Information Storage and Retrieval,   subclass 48 for subject matter related to magnetos:graphic electrophotography.
369Dynamic Information Storage and Retrieval,   subclass 125 for having photographic storage medium (e.g., variable density or area).

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for electrographic process using a charge pattern.
EPCG03G15/00C9for using information from an external support (e.g., a magnetic card).
  
[List of Patents for class 399 subclass 84]    84Key sheet:
 This subclass is indented under subclass 82.  Subject matter wherein a job mode is determined in response to detection of indicia or a mark on an original or other medium.
(1) Note. A mode is set, initiated, or changed by detection of a key sheet, marked original, or record card. The key sheet is generally on top of a stack of originals.

SEE OR SEARCH CLASS:

382Image Analysis,   subclass 317 for image sensor control (e.g., OCR sheet controls copier or fax).

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for electrographic process using a charge pattern.
EPCG03G15/00C9Ffor being interleaved with the original or directly written on the original (e.g., using a control sheet).
  
[List of Patents for class 399 subclass 85]    85Having mode change:
 This subclass is indented under subclass 82.  Subject matter wherein the job mode is changeable to a different setting automatically or during operation.
  
[List of Patents for class 399 subclass 86]    86Auto copy size or magnification:
 This subclass is indented under subclass 85.  Subject matter wherein the job mode is automatic selection of the size of the copy medium or the magnification.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
EPCG03G15/00C11for matching the image with the size of the copy material (e.g., by calculating the magnification or selecting the adequate copy material size).
  
[List of Patents for class 399 subclass 87]    87Having priority interrupt:
 This subclass is indented under subclass 85.  Subject matter wherein an operating mode is stopped to allow a second job mode to be run and the original mode is returned to after the completion of the second job mode.
(1) Note. Generally a first mode of operation is interrupted before completion to enter a second job mode. This includes returning to the first mode after completing the second.

SEE OR SEARCH THIS CLASS, SUBCLASS:

19,for job recovery after interruption.
  
[List of Patents for class 399 subclass 88]    88Having power supply:
 This subclass is indented under subclass 75.  Subject matter wherein a means or method is provided for feeding electrical energy to an electrophotographic device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

37,for diagnostics of power supplied to an electrophotographic device or component.
168+,for charging a photoconductive member.

SEE OR SEARCH CLASS:

323Electricity: Power Supply or Regulation Systems,   for power supply, per se.
361Electricity: Electrical Systems and Devices,   for subclasses 212+ for means to discharge or prevent accumulation of static electric charge and subclasses 225+ for electric charge generating or conducting means.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
JPOFIG03G21/00 398for electrical power source control, (e.g., arrangement for electrical power sources).
EPCG03G15/00Pfor details relating to power supplies, circuit boards, and electrical connections.
  
[List of Patents for class 399 subclass 89]    89Supplying power to charger:
 This subclass is indented under subclass 88.  Subject matter wherein the power is supplied to a charging unit for charging a photoconductive member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

168+,for charging, per se.

SEE OR SEARCH CLASS:

361Electricity: Electrical Systems and Devices,   subclass 235 for specific power supply of electric charge generating or conducting means.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
EPCG03G15/02Efor supplying power to the sensitizing device.
  
[List of Patents for class 399 subclass 90]    90Electrical connection:
 This subclass is indented under subclass 75.  Subject matter wherein a means or method is provided for connecting electrical signals or power between operative components or for a ground connection to a photoconductive member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

88,for having a power supply.

SEE OR SEARCH CLASS:

340Communications: Electrical,   subclasses 309.16 through 309.9for timer controlled systems.
368Horology: Time Measuring Systems or Devices,   subclasses 1+ for a timer controlled by a disparate device and subclasses 10+ for a timer combined with a disparate device.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
EPCG03G15/00Pfor details relating to power supplies, circuit boards, and electrical connections.
  
[List of Patents for class 399 subclass 91]    91INTERNAL MACHINE ENVIRONMENT:
 This subclass is indented under the class definition.  Subject matter wherein method or apparatus is provided that prevents or ameliorates adverse conditions of the machine interior atmosphere.
(1) Note. For example, adverse conditions include high or low temperature, vibration, noise, humidity, scattered toner, or contaminants.

SEE OR SEARCH THIS CLASS, SUBCLASS:

9+,for diagnostics of an electrophotographic device.
33,for over-temperature protection during fixing.
38+,for control of the electrophotographic processes (e.g., charging, exposure, developing, transferring, fixing, and cleaning).
67+,for condition-responsive control of fusing.
75+,for control of machine operations.
107+,for electrophotographic device having particular structure.
122,for fixing unit with particular modular or displaceable structure.
127+,for supplemental electrophotographic processes.
130+,for image formation, per se.
320+,for fixing (e.g., fusing), per se.
343+,for cleaning an imaging surface.
361+,for document handling.

SEE OR SEARCH CLASS:

236Automatic Temperature and Humidity Regulation,   for humidity and temperature control, per se.
374Thermal Measuring and Testing,   subclasses 1+ for thermal calibration devices.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G21/20for humidity or temperature control.
JPOFIG03G21/00 530for internal apparatus environment control of the electrographic apparatus.
EPCG03G21/20for humidity or temperature control, also ozone evacuation; internal apparatus environment control.
  
[List of Patents for class 399 subclass 92]    92Forced air circulation:
 This subclass is indented under subclass 91.  Subject matter wherein a means or method is provided for generating air flow within the electrophotographic device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

343,for cleaning an imaging member by air or vacuum.
355,for air circulation used in conjunction with a cleaning brush.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G21/20for humidity or temperature control.
JPOFIG03G21/00 538for removal of unnecessary substances from atmospheric air.
JPOFIG03G21/00 540for ozone evaluation.
  
[List of Patents for class 399 subclass 93]    93Having filtering (e.g., ozone removal):
 This subclass is indented under subclass 92.  Subject matter wherein a means or method is provided for screening out particles or gas within the atmosphere of the electrophotographic device.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G21/20for humidity or temperature control.
JPOFIG03G21/00 534for humidity or temperature control (e.g., by using a heater or a fan).
  
[List of Patents for class 399 subclass 94]    94Temperature:
 This subclass is indented under subclass 91.  Subject matter wherein a means or method is provided for adjusting or dealing with adverse temperature within the electrophotographic device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

33,for over-temperature protection of a fuser.
44,for having temperature or humidity detection.
69+,for condition-responsive temperature control of fusing.

SEE OR SEARCH CLASS:

374Thermal Measuring and Testing,   subclasses 1+ for thermal calibration devices.
  
[List of Patents for class 399 subclass 95]    95Platen:
 This subclass is indented under subclass 94.  Subject matter wherein a means or method is provided to prevent overheating of a structure for supporting an original during exposure.
  
[List of Patents for class 399 subclass 96]    96Photoconductive member:
 This subclass is indented under subclass 94.  Subject matter wherein a means or method is provided for heating or cooling a photoconductive member.
(1) Note. For example, this subject matter includes detecting a temperature of a photoconductive member for controlling the heating or cooling thereof.
  
[List of Patents for class 399 subclass 97]    97Humidity:
 This subclass is indented under subclass 91.  Subject matter wherein an arrangement is provided for regulating or ameliorating adverse conditions due to the moisture content of the environment within the electrophotographic device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

44,for temperature or humidity detection.

SEE OR SEARCH CLASS:

236Automatic Temperature and Humidity Regulation,   for humidity control, per se.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G21/20for humidity or temperature control.
JPOFIG03G21/00 534for humidity or temperature control (e.g., by using a heater or a fan).
  
[List of Patents for class 399 subclass 98]    98Particle or contaminant control:
 This subclass is indented under subclass 91.  Subject matter wherein an arrangement is provided that limits the harmful effects caused by toner dust, mist, or other airborne fragments.
(1) Note. This subject matter also includes applying a voltage or electrical connection to part(s) of the apparatus to prevent the attraction or settling of airborne particles.

SEE OR SEARCH THIS CLASS, SUBCLASS:

343+,for cleaning a photoconductive member.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G21/00for an arrangement not provided for by groups 13/00 to 19/00 (e.g., cleaning or elimination of residue).
JPOFIG03G21/00 310for cleaning (e.g., elimination of residual magnetic powder or elimination of paper residue).
  
[List of Patents for class 399 subclass 99]    99Toner removal:
 This subclass is indented under subclass 98.  Subject matter wherein an arrangement is provided for the cleaning of scattered, airborne, or spilled toner from parts of the electrophotographic device other than the surface bearing a developed electrostatic latent image.
(1) Note. This subject matter also includes an arrangement for cleaning toner from the surface of the photoconductive member that does not receive toner for imaging. For cleaning toner from parts that normally come in contact with toner (e.g., developing, doctor blade, etc.), see SEARCH THIS CLASS, SUBCLASS below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

27,for diagnostic of consumables (e.g., toner).
35,for diagnostics of cleaning a waste toner container.
49,for detection of toner involving plural control processes.
61+,for detection of toner in a developing unit.
106,for a toner cartridge.
120,for a new and waste toner container.
129,for supplemental exposure or charging of residual toner.
134,for image formation with photoconductive toner.
222+,for cleaning toner from a developing unit.
224,for adding colored toner.
239+,for application of liquid developer.
253,for conditioning dry toner.
254+,for mixing dry toner.
258+,for supplying new toner.
265+,for application of dry developer.
359,for supplying reclaimed toner to the developing device.
409,for binding copies by toner.
  
[List of Patents for class 399 subclass 100]    100Charging member (e.g., corona wire):
 This subclass is indented under subclass 99.  Subject matter wherein particles or contaminants are removed from the apparatus for applying charge to the photoconductive member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

50,for control of charging.
115,for charging unit having a modular or displaceable structure.
128+,for supplemental process (e.g., fatigue treatment) involving charging.
153,for simultaneous charging and exposure.
168+,for charging, per se.
296,for exposure or charging of a developed image prior to transfer.

SEE OR SEARCH CLASS:

323Electricity: Power Supply or Regulation Systems,   for power supply, per se.
361Electricity: Electrical Systems and Devices,   for subclasses 212+ for means to discharge or prevent accumulation of static electric charge and subclasses 225+ for electric charge generating or conducting means.
430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   appropriate subclasses for radiation imagery chemistry, process, composition, or product, especially Cross-Reference Art Collection 902 for charging.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/02for laying down a uniform charge (e.g., for sensitizing; corona discharge device).
JPOFIG03G15/02 103for safety and cleaning arrangement.
EPCG03G15/02Bfor the maintenance of the charging device (e.g., cleaning device or ozone removing device).
  
[List of Patents for class 399 subclass 101]    101Transfer member:
 This subclass is indented under subclass 99.  Subject matter wherein particles or contaminants are removed from the apparatus for transferring a latent image to a copy medium.

SEE OR SEARCH THIS CLASS, SUBCLASS:

66,for condition responsive control of transfer.
121,for transfer unit with particular modular or displaceable structure.
154,for image formation with transfer of latent image.
297+,for transferring a toner image, per se.
388+,for feeding a copy to the transfer position.
397+,for delivering a copy from the transfer position.
  
[List of Patents for class 399 subclass 102]    102Seal:
 This subclass is indented under subclass 98.  Subject matter wherein an arrangement is provided that prevents the escape of toner or developer material from an internal unit.
  
[List of Patents for class 399 subclass 103]    103Developer seal:
 This subclass is indented under subclass 102.  Subject matter wherein an arrangement is provided for preventing toner from escaping the developing unit.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/08for using solid developer or powder developer.
JPOFIG03G15/08 505for preventing the toner scattering.
G03G15/09for preventing the toner scattering using a magnetic brush.
EPCG03G15/08S1for preventing toner scattering (e.g. seals).
  
[List of Patents for class 399 subclass 104]    104Magnetic:
 This subclass is indented under subclass 103.  Subject matter wherein the developer seal is a magnetic arrangement.
  
[List of Patents for class 399 subclass 105]    105Elastic material:
 This subclass is indented under subclass 103.  Subject matter wherein the developer seal is a flexible material.
  
[List of Patents for class 399 subclass 106]    106Toner cartridge:
 This subclass is indented under subclass 103.  Subject matter wherein an arrangement is provided for preventing toner from escaping a removable, sealed container.

SEE OR SEARCH THIS CLASS, SUBCLASS:

27,for diagnostic of consumables (e.g., toner).
35,for diagnostics of cleaning a waste toner container.
49,for detection of toner involving plural control processes.
61+,for detection of toner in a developing unit.
99+,for toner removal.
120,for a new and waste toner container.
129,for supplemental exposure or charging of residual toner.
134,for image formation with photoconductive toner.
224,for adding colored toner.
239+,for application of liquid developer.
253,for conditioning dry toner.
254+,for mixing dry toner.
258+,for supplying new toner.
265+,for application of dry developer.
359,for supplying reclaimed toner to the developing device.
409,for binding copies by toner.
  
[List of Patents for class 399 subclass 107]    107HAVING PARTICULAR STRUCTURE:
 This subclass is indented under the class definition.  Subject matter wherein a housing arrangement of the electrophotographic component or device has a replaceable or displaceable configuration for transporting, reconfiguration, maintenance, service, or repair.
(1) Note. For parts of the apparatus undergoing displacement during normal operation, see SEARCH THIS CLASS, SUBCLASS below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

9+,for diagnostics of an electrophotographic device.
38+,for control of the electrophotographic processes (e.g., charging, exposure, developing, transferring, fixing, and cleaning).
75+,for control of machine operations.
91+,for internal machine environmental control.
127+,for supplemental electrophotographic processes.
130+,for image formation, per se.
317,for a displaceable transfer member with copy medium guide.
332,for a cyclically displaceable fixing nip.
345,for a cleaning arrangement disengageable from the imaging surface.
361+,for document handling.

SEE OR SEARCH CLASS:

206Special Receptacle or Package,   subclass 316.1 for special receptacles for an optical or photographic means.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
JPOFIG03G15/00 550for a housing and its components.
EPCG03G15/00for an electrographic process using a charge pattern.
  
[List of Patents for class 399 subclass 108]    108Portable:
 This subclass is indented under subclass 107.  Subject matter wherein an electrophotography device has an ability to be transported or moved by hand (i.e., carried).
(1) Note. This may also include an electrophotographic device that operates from a battery power supply, solar power supply, or portable energy source.

SEE OR SEARCH CLASS:

206Special Receptacle or Package,   subclass 316.1 for special receptacles for an optical or photographic means.
  
[List of Patents for class 399 subclass 109]    109Remanufacturing:
 This subclass is indented under subclass 107.  Subject matter wherein parts of the apparatus, such as a process cartridge, are serviced, reconditioned, or modified for further use.

SEE OR SEARCH CLASS:

29Metal Working,   subclass 895.1 for repairing or servicing a roller.
156Adhesive Bonding and Miscellaneous Chemical Manufacture,   subclass 94 for renewing or repairing articles for use.
  
[List of Patents for class 399 subclass 110]    110Modular or displaceable:
 This subclass is indented under subclass 107.  Subject matter wherein parts of the apparatus are removable or movable to gain access to the interior or other parts of the electrophotographic device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

258,for a toner cartridge.
360,for toner waste container.
391,for plural copy-medium sources having interchangeable trays.
393,for copy-medium input trays that are interchangeable.

SEE OR SEARCH CLASS:

206Special Receptacle or Package,   subclass 316.1 for special receptacles for an optical or photographic means.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G21/16mechanical means for facilitating the maintenance of the apparatus (e.g., modular arrangement).
JPOFIG03G15/00 554mechanical means which makes the maintenance of the apparatus easy, (e.g., positioning the components).
EPCG03G21/16mechanical means for facilitating the maintenance of the apparatus (e.g., modular arrangement).
  
[List of Patents for class 399 subclass 111]    111Process cartridge unit:
 This subclass is indented under subclass 110.  Subject matter wherein the particular structure provides a photoconductive member and one or more means for charging, exposing, developing, transferring, etc., as a contained, separate unit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

25,for diagnostics of consumable process cartridge.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G21/18for using a processing cartridge.
JPOFIG03G15/00 556for housing and its components using a processing cartridge.
EPCG03G21/18for using a processing cartridge.
  
[List of Patents for class 399 subclass 112]    112Color:
 This subclass is indented under subclass 111.  Subject matter wherein the process cartridge unit is capable of producing a copy that has more than one color.

SEE OR SEARCH THIS CLASS, SUBCLASS:

28,for analyzing a malfunction or potential malfunction of color reproduction.
39+,for balance control of color.
54,for color selection control.
178+,for formation of color separation images.
184,for color image editing of a selectable area.
223+,for development (e.g., applicators) of a color image.
298+,for transfer of a color image.
326,for fixing or fusing of a color image.
344,for cleaning a color-image-bearing surface.
  
[List of Patents for class 399 subclass 113]    113Having subunit separation:
 This subclass is indented under subclass 111.  Subject matter wherein the process cartridge is designed or arranged to be disassembled or separated into component parts.

SEE OR SEARCH THIS CLASS, SUBCLASS:

109,for remanufacturing a process cartridge.
  
[List of Patents for class 399 subclass 114]    114Including cover:
 This subclass is indented under subclass 111.  Subject matter wherein an arrangement is provided for a protective encasement to the process cartridge unit.
  
[List of Patents for class 399 subclass 115]    115Charging unit:
 This subclass is indented under subclass 110.  Subject matter wherein the means for applying a charge to or removing it from an imaging member is displaceable, removable, or adjustable.
(1) Note. This subject matter may include, for example, an arrangement for manually positioning or replacing a corona wire.

SEE OR SEARCH THIS CLASS, SUBCLASS:

50,for control of charging.
88+,for machine operations with power supply.
100,for particle or contaminant control in removal of toner from a charging member (e.g., corona wire).
128+,for supplemental process (e.g., fatigue treatment) involving charging.
153,for simultaneous charging and exposure.
168+,for charging, per se.
296,for exposure or charging of a developed image prior to transfer.

SEE OR SEARCH CLASS:

323Electricity: Power Supply or Regulation Systems,   for power supply, per se.
361Electricity: Electrical Systems and Devices,   for subclasses 212+ for means to discharge or prevent accumulation of static electric charge and subclasses 225+ for electric charge generating or conducting means.
430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   appropriate subclasses for radiation imagery chemistry, process, composition, or product, especially subclass 902 for charging.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/02for sensitizing (i.e., laying down a uniform charge).
JPOFIG03G15/02 102for arrangements for the control or the circuits.
EPCG03G15/02Cfor an arrangement for controlling the amount of a charge.
  
[List of Patents for class 399 subclass 116]    116Photoconductive member:
 This subclass is indented under subclass 110.  Subject matter wherein the removable or replaceable unit is an electrostatic, latent, image-bearing member.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
JPOFIG03G21/00 354structure arranged for replacing a photosensitive material.
  
[List of Patents for class 399 subclass 117]    117Drum mount:
 This subclass is indented under subclass 116.  Subject matter wherein an arrangement is provided for bearing support of a cylindrically shaped photoconductive member.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
EPCG03G15/00H1for replacement, testing, etc., relating to drum.
  
[List of Patents for class 399 subclass 118]    118Optics:
 This subclass is indented under subclass 110.  Subject matter wherein an arrangement is provided that allows an alignment of an optical component between an original and a photoconductive member.
(1) Note. The optical components may consist of reflectors, mirrors, or lens, or holders therefor, to guide a light from an original to a photoconductive member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

64,for optical detector of toner in a developing unit.
137,for optical intermediate storage of original image.
196+,for variable magnification during exposure.
200+,for automatic adjustment of an optical component due to a change in magnification.
209,for a repositioning of a scanning carriage due to a change in scanning length.
216,for slit exposure by pivoting mirror.
218,for specific lens during exposure.
219,for fiber optics used during exposure.

SEE OR SEARCH CLASS:

206Special Receptacle or Package,   subclass 316.1 for special receptacles for an optical or photographic means.
359Optics: Systems (Including Communication) and Elements,   subclass 12 for copying by holographic means.
385Optical Waveguides,   for optical waveguiding element, per se, particularly subclass 116 for imaging (i.e., with coherent fiber structure and includes shaping, enhancing, and correcting).
  
[List of Patents for class 399 subclass 119]    119Developing unit:
 This subclass is indented under subclass 110.  Subject matter wherein the removable or replaceable unit applies toner to a latent image to render the image visible.

SEE OR SEARCH THIS CLASS, SUBCLASS:

222+,for development, per se.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/08for using solid developer, powder developer.
JPOFIG03G15/08 506for mounting/dismounting.
EPCG03G15/08Sfor details concerning the developer unit structure (e.g., arrangement for removing or positioning the unit).
  
[List of Patents for class 399 subclass 120]    120New and waste toner container:
 This subclass is indented under subclass 119.  Subject matter wherein the removable or replaceable unit contains both new and used toner.

SEE OR SEARCH THIS CLASS, SUBCLASS:

27,for diagnostic of consumables (e.g., toner).
35,for diagnostics of cleaning waste toner container.
49,for detection of toner involving plural control processes.
61+,for detection of toner in developing unit.
99+,for toner removal.
106,for toner cartridge.
129,for supplemental exposure or charging of residual toner.
134,for image formation with photoconductive toner.
224,for adding colored toner.
239+,for application of liquid developer.
253,for conditioning of dry toner.
254+,for mixing of dry toner.
258+,for supplying new toner.
265+,for application of dry developer.
359,for supplying reclaimed toner to the developing device.
409,for binding copies by toner.

SEE OR SEARCH CLASS:

53Package Making,   for package making, per se.
206Special Receptacle or Package,   subclasses 449+ for plate or sheet.
220Receptacles,   for receptacles, per se.
222Dispensing,   for dispensing material from a container.
401Coating Implements With Material Supply,   subclass 132 for rupturable seals.
  
[List of Patents for class 399 subclass 121]    121Transfer unit:
 This subclass is indented under subclass 110.  Subject matter wherein the displaceable or removable part is an arrangement for transferring an image from one surface or medium to another.

SEE OR SEARCH THIS CLASS, SUBCLASS:

66,for condition responsive control of transfer.
101,for particle or contaminant control of toner on a transfer member.
154,for image formation with transfer of latent image.
297+,for transferring a toner image, per se.
388+,for feeding a copy to the transfer position.
397+,for delivering a copy from the transfer position.
  
[List of Patents for class 399 subclass 122]    122Fixing unit:
 This subclass is indented under subclass 110.  Subject matter wherein the displaceable or removable part is an arrangement for permanently adhering toner to a copy medium.

SEE OR SEARCH THIS CLASS, SUBCLASS:

33,for over-temperature protection during fixing.
67+,for condition-responsive control of fusing.
91,for a fire extinguisher internal to the machine.
320+,for fixing (e.g., fusing), per se.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/20for fixing (e.g., by using heat).
EPCG03G15/20H2P1Mfor maintenance purpose (e.g., for removing a jammed sheet).
  
[List of Patents for class 399 subclass 123]    123Cleaning unit:
 This subclass is indented under subclass 110.  Subject matter wherein the displaceable or removable part is provided for cleaning a surface of an image-bearing member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

34,for cleaning diagnostics.
71,for control of cleaning during the electrophotography process.
149,for combined development and cleaning by a single component.
245,for self-cleaning with electrodes a liquid development application member.
327,for cleaning a fixing member.
343+,for cleaning an imaging surface (i.e., photoconductive member), including a cleaning member cyclically movable into and out of contact with the imaging surface.

SEE OR SEARCH CLASS:

15Brushing, Scrubbing, and General Cleaning,   subclasses 1.51+ for electrostatic cleaning and subclasses 300.1+ for air blast or suction which may be used to clean electrophotographic, photoresponsive, imaging surfaces.
134Cleaning and Liquid Contact With Solids,   subclasses 1+ for cleaning applications of electric, wave, ray, or radiant energy.
  
[List of Patents for class 399 subclass 124]    124Paper path access:
 This subclass is indented under subclass 110.  Subject matter wherein the displaceable part gives access to a traveled path of the original or copy medium.
(1) Note. The copy-medium path of travel may be before or after image transfer.
  
[List of Patents for class 399 subclass 125]    125Clamshell type:
 This subclass is indented under subclass 110.  Subject matter wherein a housing arrangement is provided with an upper frame and a lower frame that opens and closes about a pivot point.
  
[List of Patents for class 399 subclass 126]    126Adjustment:
 This subclass is indented under subclass 107.  Subject matter wherein a mechanical means such as a screw or cam is provided for setting or changing the position of a component.
  
[List of Patents for class 399 subclass 127]    127SUPPLEMENTAL ELECTROPHOTO­GRAPHIC PROCESS:
 This subclass is indented under the class definition.  Subject matter wherein one or more of charging, exposing, developing, or cleaning is performed other than during, or directly for, copying or reproduction.
(1) Note. This subject matter may include, for example, prewetting, prerotation, or postrotation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

9+,for diagnostics of an electrophotographic device.
38+,for control of the electrophotographic processes (e.g., charging, exposure, developing, transferring, fixing, and cleaning).
75+,for control of machine operations.
91+,for internal machine environmental control.
107+,for electrophotographic device having particular structure.
130+,for image formation, per se.
156,for modification of latent image.
343+,for cleaning an imaging surface.
361+,for document handling.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G21/00for an arrangement not provided for by groups 13/00 to 19/00 (e.g., cleaning, elimination of residue).
G03G21/06for eliminating residual charges from a reusable imaging member.
G03G21/08for using optical radiation.
  
[List of Patents for class 399 subclass 128]    128Exposure or charging (e.g., fatigue treatment):
 This subclass is indented under subclass 127.  Subject matter wherein a photoconductive member is exposed or charged other than for image formation.
(1) Note. For example, this subject matter may include fatigue treatments used to stabilize the photoconductive member for its next application.

SEE OR SEARCH THIS CLASS, SUBCLASS:

50,for control of charging.
100,for particle or contaminant control in removal of toner from a charging member (e.g., corona wire).
115,for charging unit having a modular or displaceable structure.
153,for simultaneous charging and exposure.
168+,for charging, per se.
296,for exposure or charging a developed image prior to transfer.

SEE OR SEARCH CLASS:

323Electricity: Power Supply or Regulation Systems,   for power supply, per se.
361Electricity: Electrical Systems and Devices,   for subclasses 212+ for means to discharge or prevent accumulation of static electric charge and subclasses 225+ for electric charge generating or conducting means.
430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   appropriate subclasses for radiation imagery chemistry, process, composition, or product, especially Cross-Reference Art Collection 902 for charging.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G21/00for an arrangement not provided for by groups 13/00 to 19/00 (e.g., cleaning, elimination of residue).
G03G21/06for eliminating residual charges from a reusable imaging member.
G03G21/08for using optical radiation.
JPOFIG03G21/00 340for eliminating residual charge.
G03G21/00 342for using optical radiation.
G03G21/00 345for fatigue treatment of the photosensitive material.
EPCG03G21/00Ffor fatigue treatment of the photoconductor.
  
[List of Patents for class 399 subclass 129]    129Of residual toner:
 This subclass is indented under subclass 128.  Subject matter wherein the charging or exposure is of untransferred toner to be removed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

27,for diagnostic of consumables (e.g., toner).
35,for diagnostics of cleaning a waste toner container.
49,for detection of toner involving plural control processes.
61+,for detection of toner in a developing unit.
99+,for toner removal.
106,for a toner cartridge.
120,for a new and waste toner container.
134,for image formation with photoconductive toner.
224,for adding colored toner.
239+,for application of liquid developer.
253,for conditioning dry toner.
254+,for mixing dry toner.
258+,for supplying new toner.
265+,for application of dry developer.
359,for supplying reclaimed toner to the developing device.
409,for binding copies by toner.
  
[List of Patents for class 399 subclass 130]    130IMAGE FORMATION:
 This subclass is indented under the class definition.  Subject matter wherein a copy is produced by making a latent image visible with toner or marking particles.
(1) Note. This subject matter also includes a second or subsequent exposure or development of the same image to enhance the reproduction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

9+,for diagnostics of an electrophotographic device.
38+,for control of the electrophotographic processes (e.g., charging, exposure, developing, transferring, fixing, and cleaning).
75+,for control of machine operations.
91+,for internal machine environmental control.
107+,for electrophotographic device having particular structure.
127+,for supplemental electrophotographic processes.
343+,for cleaning an imaging surface.
361+,for document handling.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/22for involving the combination of more than one step according to groups G03G 13/02 to 13/20.
JPOFIG03G15/22for involving the combination of more than one step according to groups G03G 13/02 to 13/20.
EPCG03G15/22for involving the combination of more than one step according to groups G03G 13/02 to 13/20.
  
[List of Patents for class 399 subclass 131]    131Photoelectrophoretic:
 This subclass is indented under subclass 130.  Subject matter wherein particles suspended in an insulative liquid carrier between electrodes migrate in an image configuration in response to both an electrical potential difference between electrodes across the suspension and light exposure in image configuration.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G17/04for using photoelectrophoresis.
G03G17/06apparatus using photoelectrophoresis.
JPOFIG03G17/04for using photoelectrophoresis.
G03G17/06apparatus using photoelectrophoresis.
EPCG03G17/04for using photoelectrophoresis.
G03G17/06apparatus using photoelectrophoresis.
  
[List of Patents for class 399 subclass 132]    132Thermoplastic deformation:
 This subclass is indented under subclass 130.  Subject matter wherein a latent electrostatic image is made visible by the deformation of a thermoplastic layer.
(1) Note. The deformation is usually by heat or solvent.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G16/00for electrographic processes using deformation of thermoplastic layers.
JPOFIG03G16/00for electrographic processes using deformation of thermoplastic layers.
EPCG03G16/00for electrographic processes using deformation of thermoplastic layers.
  
[List of Patents for class 399 subclass 133]    133Having layer separation (e.g., manifold imaging):
 This subclass is indented under subclass 130.  Subject matter wherein is provided an imaging layer between a donor sheet and a receiver sheet that is structurally fracturable in response to the combined effect of an applied electrical field and exposure that provides a negative image on one of the sheets and a positive image on the other.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G17/08for using an electrophoto-adhesive process (e.g., manifold imaging).
JPOFIG03G17/08for using an electrophoto-adhesive process (e.g., manifold imaging).
EPCG03G17/08for using an electrophoto-adhesive process (e.g., manifold imaging).
  
[List of Patents for class 399 subclass 134]    134Having photoconductive toner:
 This subclass is indented under subclass 130.  Subject matter wherein the photoconductive medium is in the form of toner or particles.

SEE OR SEARCH THIS CLASS, SUBCLASS:

27,for diagnostic of consumables (e.g., toner).
35,for diagnostics of cleaning a waste toner container.
49,for detection of toner involving plural control processes.
61+,for detection of toner in a developing unit.
99+,for toner removal.
106,for a toner cartridge.
120,for a new and waste toner container.
129,for supplemental exposure or charging of residual toner.
224,for adding colored toner.
239+,for application of liquid developer.
253,for conditioning dry toner.
254+,for mixing dry toner.
258+,for supplying new toner.
265+,for application of dry developer.
359,for supplying reclaimed toner to the developing device.
409,for binding copies by toner.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
G03G15/22for involving the combination of more than one step according to groups G03G 13/02 to 13/20.
JPOFIG03G15/00 119for using photoconductive toner.
EPCG03G15/22Gfor using photoconductive toner particles.
  
[List of Patents for class 399 subclass 135]    135Ion modulation (e.g., screen):
 This subclass is indented under subclass 130.  Subject matter wherein the photoconductive member is in the form of a screen or grid or apertures and, after formation of a latent image as per the class definition, serves to modulate the flow of ions or charged particles to produce a similar or the same latent image on a second member.

SEE OR SEARCH CLASS:

347Incremental Printing and Symbolic Information,   subclass 55 for applying an electric field ejection intermittently.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/05for imagewise charging (e.g., photoconductive control screen, optically activated charging means).
JPOFIG03G15/05for imagewise charging (e.g., photoconductive control screen, optically activated charging means).
G03G15/22 107for machines handling xeroradiographic images and for machines using a photocontrolled ion flow.
EPCG03G15/22Hfor using a photocontrolled ion flow.
  
[List of Patents for class 399 subclass 136]    136Simultaneously with charge transfer:
 This subclass is indented under subclass 130.  Subject matter wherein a latent electrostatic image in or on a photoconductive member is transferred to or reproduced on a separate second member, generally dielectric and in contact or separated by a small gap, by conduction of electrical charges across the gap or by direct transfer of charge between the members under the influence of light in imagewise configuration, where one or both of the members are precharged or a voltage is applied therebetween during imaging.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/05for imagewise charging (e.g., photoconductive control screen, optically activated charging means).
JPOFIG03G15/044by charge transfer onto the recording material in accordance with the image.
G03G15/18 101by simultaneously performing the exposure and the latent image transfer.
EPCG03G15/044by charge transfer onto the recording material in accordance with the image.
  
[List of Patents for class 399 subclass 137]    137Optical intermediate storage of original image:
 This subclass is indented under subclass 130.  Subject matter wherein the original image is stored in a light image memory in an optical component between the original and photoconductive member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

64,for optical detector of toner in a developing unit.
118,for optics with particular modular or displaceable structure.
196+,for variable magnification during exposure.
200+,for automatic adjustment of an optical component due to a change in magnification.
209,for a repositioning of a scanning carriage due to a change in scanning length.
216,for slit exposure by pivoting mirror.
218,for specific lens during exposure.
219,for fiber optics used during exposure.

SEE OR SEARCH CLASS:

206Special Receptacle or Package,   subclass 316.1 for special receptacles for an optical or photographic means.
359Optics: Systems (Including Communication) and Elements,   subclass 12 for copying by holographic means.
385Optical Waveguides,   for optical waveguiding element, per se, particularly subclass 116 for imaging (i.e., with coherent fiber structure and includes shaping, enhancing, and correcting).
  
[List of Patents for class 399 subclass 138]    138Operator adjusted density:
 This subclass is indented under subclass 130.  Subject matter wherein a means or method is provided for an operator to select or adjust the relative lightness or darkness of a reproduced image.
(1) Note. This subject matter also includes adjustment for line image or photo image.

SEE OR SEARCH THIS CLASS, SUBCLASS:

81,for operator interface panel.
  
[List of Patents for class 399 subclass 139]    139Formation of master, photocopy-printer:
 This subclass is indented under subclass 130.  Subject matter wherein a toner image is formed and subsequently used as the original for further reproduction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

145,for plural copies from the same latent image.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/22for involving the combination of more than one step according to groups G03G 13/02 to 13/20.
EPCG03G15/22Mfor a process involving the formation of a master (e.g., photocopy-printer machine).
  
[List of Patents for class 399 subclass 140]    140To produce microimage:
 This subclass is indented under subclass 130.  Subject matter wherein formation of an electrophotographic image is reproduced in miniature (e.g., microfilm or microfiche) on a thin flexible cellulose material.
(1) Note. For example, this subject matter includes multiframe microfiche film that may be used in conjunction with a microphotographic copying machine.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/22for involving the combination of more than one step according to groups G03G 13/02 to 13/20.
EPCG03G15/22A2for machines handling microimages (e.g., microfilm copiers).
  
[List of Patents for class 399 subclass 141]    141Film process head:
 This subclass is indented under subclass 140.  Subject matter wherein an apparatus is provided for engaging multiple frames of film at a time.
(1) Note. Separate sections of the process head are for charging, exposing, developing, fixing, drying, etc.
  
[List of Patents for class 399 subclass 142]    142Development:
 This subclass is indented under subclass 141.  Subject matter wherein a section of the film process head is directed to applying toner to a latent image.
  
[List of Patents for class 399 subclass 143]    143Selectively positive or negative:
 This subclass is indented under subclass 130.  Subject matter wherein method or apparatus is provided for automatically or selectively producing either a positive copy (relative light and dark portions are the same in original and copy) or a negative copy (light and dark portions are reversed between original and copy).
(1) Note. The negative copy mode is generally used for producing a copy with a white background where the original has a black background (e.g., negative film).
  
[List of Patents for class 399 subclass 144]    144Reader-printer
 This subclass is indented under subclass 130.  Subject matter wherein an apparatus is provided for making a full-size reproduction from a microfilm or microfiche original.
(1) Note. This subject matter may include an arrangement for viewing the image to be reproduced.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/22for involving the combination of more than one step according to groups G03G 13/02 to 13/20.
JPOFIG03G15/22 104for reader-printers.
  
[List of Patents for class 399 subclass 145]    145Plural copies from same latent image:
 This subclass is indented under subclass 130.  Subject matter wherein apparatus is provided for developing the same electrostatic latent image more than one time to produce plural copies.

SEE OR SEARCH THIS CLASS, SUBCLASS:

139,for formation of original used for reproduction.
  
[List of Patents for class 399 subclass 146]    146Contact exposure:
 This subclass is indented under subclass 130.  Subject matter wherein an original and a photoconductive member are adjacent or in close proximity to each other during exposure.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/22for involving the combination of more than one step according to groups G03G 13/02 to 13/20.
EPCG03G15/22Cfor using contact-printing.
  
[List of Patents for class 399 subclass 147]    147Having overlayer:
 This subclass is indented under subclass 130.  Subject matter wherein a separate film is provided between a photoconductive member and a developing unit for indirect development or development on a reverse side of a photosensitive sheet bearing a latent image.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/22for involving the combination of more than one step according to groups G03G 13/02 to 13/20.
EPCG03G15/048Dfor the image being formed on a dielectric cover layer.
  
[List of Patents for class 399 subclass 148]    148Combined or plural functions by single component:
 This subclass is indented under subclass 130.  Subject matter wherein a means or method is provided that performs two or more electrophotographic functions (e.g., charging, exposing, developing, transferring, fixing, and cleaning).

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/22for involving the combination of more than one step according to groups G03G 13/02 to 13/20.
G03G15/24whereby at least two steps are performed simultaneously.
JPOFIG03G15/22 101Cby two revolutions, one copy type.
G03G15/24whereby at least two steps are performed simultaneously.
EPCG03G15/24whereby at least two steps are performed simultaneously.
G03G15/30Cwith more than one photoconductor revolution for each copying cycle.
  
[List of Patents for class 399 subclass 149]    149Development and cleaning:
 This subclass is indented under subclass 148.  Subject matter wherein a single electrophotographic component performs the functions of developing a latent image and cleaning the photoconductive member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

34,for cleaning diagnostics.
71,for control of cleaning during the electrophotography process.
123,for particular structure of cleaning unit.
245,for self-cleaning with electrodes a liquid development application member.
327,for cleaning of fixing member.
343+,for cleaning an imaging surface (i.e., photoconductive member), including for a cleaning member cyclically movable into and out of contact with the imaging surface.

SEE OR SEARCH CLASS:

15Brushing, Scrubbing, and General Cleaning,   subclasses 1.51+ for electrostatic cleaning and subclasses 300.1+ for air blast or suction which may be used to clean electrophotographic, photoresponsive imaging surfaces.
134Cleaning and Liquid Contact With Solids,   subclasses 1+ for cleaning applications of electric, wave, ray, or radiant energy.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/30in which projection is formed on a drum.
EPCG03G15/30Cwith more than one photoconductor revolution for each copying cycle.
  
[List of Patents for class 399 subclass 150]    150Simultaneously:
 This subclass is indented under subclass 149.  Subject matter wherein the single component performs the developing and cleaning at the same time.
(1) Note. This subject matter may include a means or method for distributing or disorienting a residual toner image to be cleaned.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/24whereby at least two steps are performed simultaneously.
JPOFIG03G15/08 507Bfor special methods and devices without a cleaner.
  
[List of Patents for class 399 subclass 151]    151Combined with scanning:
 This subclass is indented under subclass 130.  Subject matter wherein one or more electrophotographic process units (e.g., a charger) is attached to or integrated with a movable scanning carriage for exposing the original.
(1) Note. Other electrophotographic process units may be a developing unit, transfer unit, fixing unit, or cleaning unit.
  
[List of Patents for class 399 subclass 152]    152Simultaneous exposure and development:
 This subclass is indented under subclass 130.  Subject matter wherein an apparatus is provided for developing a latent image on a photoconductive member while it is being exposed in image configuration.

SEE OR SEARCH CLASS:

430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   subclass 120.5 for processes of simultaneously imaging and developing.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/24whereby at least two steps are performed simultaneously.
JPOFIG03G15/24whereby at least two steps are performed simultaneously.
EPCG03G15/24whereby at least two steps are performed simultaneously.
  
[List of Patents for class 399 subclass 153]    153Simultaneous charging and exposure:
 This subclass is indented under subclass 130.  Subject matter wherein an apparatus is provided for applying a charge to the photoconductive member at the same time it is being exposed, typically through an aperture in the frame of a corona charging device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

296,for exposure or charging of a developed image prior to transfer.

SEE OR SEARCH CLASS:

430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   appropriate subclasses for radiation imagery chemistry, process, composition, or product.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/056for using internal polarization.
G03G15/24whereby at least two steps are performed simultaneously.
JPOFIG03G15/24whereby at least two steps are performed simultaneously.
EPCG03G15/24whereby at least two steps are performed simultaneously.
  
[List of Patents for class 399 subclass 154]    154Having transfer of latent image:
 This subclass is indented under subclass 130.  Subject matter wherein an apparatus is provided for transferring an electrostatic latent image from one medium or substrate to another.

SEE OR SEARCH THIS CLASS, SUBCLASS:

66,for condition responsive control of transfer.
101,for particle or contaminant control of toner on a transfer member.
121,for transfer unit with particular modular or displaceable structure.
297+,for transferring a toner image, per se.
388+,for feeding a copy to the transfer position.
397+,for delivering a copy from the transfer position.

SEE OR SEARCH CLASS:

101Printing,   subclass 489 for electric or magnetic transfer process by using a difference in electrostatic or magnetic attraction.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/18for transferring a pattern to a second base of a charge pattern.
JPOFIG03G15/18for transferring a pattern to a second base of a charge pattern.
G03G15/01Afor producing multicolored copies by latent image transfer.
EPCG03G15/18for transferring a pattern to a second base of a charge pattern.
  
[List of Patents for class 399 subclass 155]    155Having reciprocating imaging member:
 This subclass is indented under subclass 130.  Subject matter wherein the photoconductor moves in a back-and-forth motion during the electrophotographic process.
  
[List of Patents for class 399 subclass 156]    156Having modification of latent image:
 This subclass is indented under subclass 130.  Subject matter wherein an apparatus is provided for supplemental charging or exposure of an electrostatic latent image.
(1) Note. The additional charging or exposure may occur before or after the latent image is completely formed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

127+,for supplemental electrophotographic processes.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/045with means for charging or discharging distinct portions of the charge pattern on the recording material (e.g., for contrast enhancement or discharging nonimage areas).
JPOFIG03G15/052by charging or discharging after sensitizing.
EPCG03G15/052by charging or discharging after sensitizing (e.g., contrast enhancing processes).
  
[List of Patents for class 399 subclass 157]    157To produce outline image:
 This subclass is indented under subclass 156.  Subject matter wherein the modification of the latent image produces an outlined shape of the original image.
  
[List of Patents for class 399 subclass 158]    158Display of developed image:
 This subclass is indented under subclass 130.  Subject matter wherein a method or apparatus is provided that allows a developed image to be observed that has not been fixed or fused to a copy medium.

SEE OR SEARCH THIS CLASS, SUBCLASS:

81,for operator interface panel.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
JPOFIG03G15/22 106for involving the combination of more than one step according to groups.
G03G13/02 to 13/20for electrophotographic projectors.
  
[List of Patents for class 399 subclass 159]    159Photoconductive member:
 This subclass is indented under subclass 130.  Subject matter wherein a light responsive member has a particular physical, electrical, or magnetic characteristic which enables the member to change its (a) electrical resistivity or (b) conductivity or (c) charge or (d) emissivity or (e) magnetic condition or (f) persistent internal polarization upon exposure to radiant energy in the form of light.
(1) Note. The light sensitive member may have, for example, a distinctive shape, width, orientation angle, etc.
(2) Note. This subject matter may include an arrangement for interior exposure (i.e., from within a belt or drum) of the photoconductive member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

26,for a diagnostic of consumable photoconductive member.
116+,for a photoconductive member having particular modular or displaceable structure.

SEE OR SEARCH CLASS:

101Printing,   subclass 415.1 for a flexible sheet clamping device.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
JPOFIG03G21/00 350for mechanical constitution of the recording medium or photosensitive.
G03G21/00 352for mechanical means of mounting a thin photosensitive sheet.
EPCG03G15/00Hfor details relating to xerographic drum, band, or platen (e.g., replacing, testing).
G03G15/00H1relating to drum.
  
[List of Patents for class 399 subclass 160]    160Selection of image frame area:
 This subclass is indented under subclass 159.  Subject matter wherein a means or method is provided for positioning or locating an image area in relation to a point along a rotational path.
(1) Note. This subject matter may include compensation for a seam in the photoconductive member.
  
[List of Patents for class 399 subclass 161]    161Renewable layer:
 This subclass is indented under subclass 159.  Subject matter wherein a means or method is provided for advancing unused portions of a photoconductive member to an operative position.
(1) Note. This subject matter includes a rotatable hollow cylinder and guiding apparatus around the periphery of the cylinder including a portion located inside the cylinder for supplying and taking up a web or belt and one or more openings in the periphery of the cylinder through which the web or belt may be supplied and collected.

SEE OR SEARCH CLASS:

242Winding, Tensioning, or Guiding,   subclasses 324+ for unwinding photographic film.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
EPCG03G15/00H1Rwith renewable photoconductive layer.
  
[List of Patents for class 399 subclass 162]    162Belt:
 This subclass is indented under subclass 159.  Subject matter wherein the photoconductive member is in the form of a flexible web.

SEE OR SEARCH CLASS:

474Endless Belt Power Transmission Systems or Components,   for belt power transmission, per se.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
JPOFIG03G15/00 117for using a photoconductive film type photosensitive material.
EPCG03G15/00H2for relating to band (e.g., tensioning).
  
[List of Patents for class 399 subclass 163]    163Having nonuniform motion:
 This subclass is indented under subclass 162.  Subject matter wherein different portions of the photoconductive belt move at various speeds.
(1) Note. This subject matter may include stopping the photoconductive belt during exposure.
  
[List of Patents for class 399 subclass 164]    164Having backing support:
 This subclass is indented under subclass 162.  Subject matter wherein a means or method is provided to support a photoconductive belt at the point of engagement with an operative component.
(1) Note. An operative component, for example, may be an exposure or developing device.
  
[List of Patents for class 399 subclass 165]    165Alignment or tensioning:
 This subclass is indented under subclass 162.  Subject matter wherein a means or method is provided for restricting the tracking motion of the photoconductive belt.
(1) Note. This subject matter also includes tension adjustment of the photoconductive belt.

SEE OR SEARCH CLASS:

242Winding, Tensioning, or Guiding,   for a process or apparatus for tensioning (i.e., applying or regulating longitudinal stress) and for guiding (i.e., establishing or confining the path of movement of a running material of indefinite length).

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
EPCG03G15/00H2for relating to band (e.g., tensioning).
G03G15/00H2Afor maintaining the lateral alignment of the band.
  
[List of Patents for class 399 subclass 166]    166Plate:
 This subclass is indented under subclass 159.  Subject matter wherein the photoconductive member is in the form of a plate or a sheet attached to a rectangular plate.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
EPCG03G15/00H4relating to plate or sheet.
  
[List of Patents for class 399 subclass 167]    167Drive apparatus:
 This subclass is indented under subclass 159.  Subject matter wherein a driving arrangement is provided that imparts motion to a photoconductive member.
(1) Note. This subject matter may include recitation of a particular speed.

SEE OR SEARCH CLASS:

198Conveyors: Power-Driven,   for power driven conveyors, per se.
474Endless Belt Power Transmission Systems or Components,   for belt power transmission, per se.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/00for an electrographic process using a charge pattern.
EPCG03G15/00H3for a drive mechanism for photosensitive medium.
  
[List of Patents for class 399 subclass 168]    168Charging:
 This subclass is indented under subclass 130.  Subject matter wherein a method or apparatus is provided that applies a voltage or current to a photoconductive member to produce or remove an electrostatic charge potential.
(1) Note. The applied voltage or current may remove a charge from a photoconductive member. This subject matter does not include removing a charge by the action of light.

SEE OR SEARCH THIS CLASS, SUBCLASS:

50,for control of charging.
88+,for machine operations with power supply.
100,for particle or contaminant control in removal of toner from a charging member (e.g., corona wire).
115,for a charging unit having a modular or displaceable structure.
128+,for a supplemental process (e.g., fatigue treatment) involving charging.
153,for simultaneous charging and exposure.
296,for exposure or charging of a developed image prior to transfer.

SEE OR SEARCH CLASS:

323Electricity: Power Supply or Regulation Systems,   for power supply, per se.
361Electricity: Electrical Systems and Devices,   for subclasses 212+ for means to discharge or prevent accumulation of static electric charge and subclasses 225+ for electric charge generating or conducting means.
430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   appropriate subclasses for radiation imagery chemistry, process, composition, or product, especially Cross-Reference Art Collection 902 for charging.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/02for sensitizing (i.e., laying down a uniform charge).
JPOFIG03G15/02for laying down a uniform charge (e.g., for sensitizing; Corona discharge devices).
G03G15/02 101for using the characteristics of the structure.
G03G15/02 102for arrangements for the control or the circuits.
EPCG03G15/02for sensitizing (i.e., laying down a uniform charge).
  
[List of Patents for class 399 subclass 169]    169Having selection of area to be charged:
 This subclass is indented under subclass 168.  Subject matter wherein a means or method is provided for limiting an electrical charge application to a selected area on the photoconductive member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

187+,for light exposure to reduce the charged area.
  
[List of Patents for class 399 subclass 170]    170Corona:
 This subclass is indented under subclass 168.  Subject matter wherein a high voltage is applied to a conductor (e.g., wire) which causes a current to flow to the member to be charged by ionization of the air or gas surrounding the conductor.
(1) Note. This condition is not sufficient to cause sparking.
(2) Note. This subject matter may include an arrangement to supply new corona wire.

SEE OR SEARCH CLASS:

250Radiant Energy,   subclasses 324 through 325for corona irradiation and charging of moving objects.
361Electricity: Electrical Systems and Devices,   subclasses 225+ for electrical charging of objects and materials, particularly subclass 235 for having a specific power supply.
  
[List of Patents for class 399 subclass 171]    171Having grid:
 This subclass is indented under subclass 170.  Subject matter wherein a screen or wire electrode is provided between the conductor (e.g., corona wire) and photoconductive member.
  
[List of Patents for class 399 subclass 172]    172Having case:
 This subclass is indented under subclass 170.  Subject matter wherein a shield is placed around a corona arrangement.
  
[List of Patents for class 399 subclass 173]    173Needle type:
 This subclass is indented under subclass 170.  Subject matter wherein the corona is produced by a pin electrode or electrodes.
  
[List of Patents for class 399 subclass 174]    174Contact:
 This subclass is indented under subclass 168.  Subject matter wherein an electrical charge is applied to a photoconductor by a contacting member.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/02for laying down a uniform charge (e.g., for sensitizing; Corona discharge device).
EPCG03G15/02Afor sensitizing (i.e., laying-down a uniform charge by contact, friction, or induction; e.g., roller, brush chargers).
  
[List of Patents for class 399 subclass 175]    175Brush:
 This subclass is indented under subclass 174.  Subject matter wherein the contact charger is brushlike or fibrous.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/02for laying down a uniform charge (e.g., for sensitizing; Corona discharge device).
EPCG03G15/02Afor sensitizing (i.e., laying-down a uniform charge by contact, friction or induction; e.g., roller, brush chargers).
  
[List of Patents for class 399 subclass 176]    176Roller:
 This subclass is indented under subclass 174.  Subject matter wherein the contact charger is a rotatable cylinder.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/02for laying down a uniform charge (e.g., for sensitizing; Corona discharge device).
EPCG03G15/02Afor sensitizing (i.e., laying-down a uniform charge by contact, friction or induction; e.g., roller, brush chargers).
  
[List of Patents for class 399 subclass 177]    177Exposure:
 This subclass is indented under subclass 130.  Subject matter wherein a method or apparatus is provided that conducts radiant energy in the form of light directly from an original to an image-bearing member.
(1) Note. The use of the limitation "directly" excludes image formation systems in which an image of an original is detected and converted to electrical signals which are subsequently utilized to generate further illumination signals to optically form an image of the original on the medium. This excluded subject matter may be found, for example, in Class 346, subclasses 74.2+, and in Class 358, subclasses 300 and 301.
(2) Note. Exposure of a charged photoconductive member to a pattern of light results in an electrostatic latent image.

SEE OR SEARCH THIS CLASS, SUBCLASS:

51,for control of exposure.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/04for exposing (i.e., imagewise exposure by optically projecting the original image on a photoconductive recording material).
JPOFIG03G15/04for exposing (i.e., imagewise exposure projecting the original image on a recording material).
G03G15/04 111for using the characteristics of the optical system.
EPCG03G15/04for exposing ( i.e., transmitting the information given by the original image to the recording material; electron beam tubes for electrography for transferring a charge pattern through the face platen to the recording material).
  
[List of Patents for class 399 subclass 178]    178Formation of color separation images:
 This subclass is indented under subclass 177.  Subject matter wherein a colored original is exposed to a plurality of different colored lights to produce separation images.
(1) Note. The plurality of different colors may be produced by filters or different colored light sources.
(2) Note. Rather than forming a total light image of an original, the light image is filtered (or different colored exposure lights are used) to produce a single-colored light image which is a light image of the original. A succession of latent images are thus produced, each corresponding to a separate, different-colored, single light image. Each latent image is developed with toner complementary in color to the color of the filtered light image. The toner images are superimposed in registration to produce a color copy corresponding to the latent image formed with red light developed with cyan toner. A blue light image is developed with yellow toner. A green light image is developed with magenta. Also, another term for color separation images is color resolved images.

SEE OR SEARCH THIS CLASS, SUBCLASS:

28,for analyzing a malfunction or potential malfunction of color reproduction.
39+,for balance control of color.
54,for color selection control.
112,for modular or displaceable color process cartridge unit.
184,for color image editing of a selectable area.
223+,for development (e.g., applicators) of a color image.
298+,for transfer of a color image.
326,for fixing or fusing of a color image.
344,for cleaning a color-image-bearing surface.

SEE OR SEARCH CLASS:

430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   subclasses 42.1 through 47.5to produce a multicolor production (i.e., plural colors named or more than one color identified).

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/01for producing multicolored copies.
JPOFIG03G15/01 112for producing multicolored copies using the characteristics related to the exposure process.
EPCG03G15/01D4for exposing.
  
[List of Patents for class 399 subclass 179]    179To plural photoconductive members:
 This subclass is indented under subclass 178.  Subject matter wherein color separation images are exposed to a plurality of photoconductive members.
  
[List of Patents for class 399 subclass 180]    180Having halftone screen:
 This subclass is indented under subclass 178.  Subject matter wherein a means or method is provided that reproduces an original image in lines, segments, or dots by enabling an original to appear as if it were projected through a screen having a lattice of parallel lines at a specified angle.
(1) Note. Line or halftone images may be formed electrostatically (e.g., via a photoconductive member with a line or periodic dot pattern thereon).
(2) Note. Color images are frequently exposed onto a photoconductive member as line images formed at different specified angles for different colors.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/01for producing multicolored copies.
EPCG03G15/01D4Hfor exposing and forming a halftone image.
  
[List of Patents for class 399 subclass 181]    181Halftone image:
 This subclass is indented under subclass 177.  Subject matter wherein a means or method is provided that reproduces an original image in lines, segments, or dots.
(1) Note. Lines or halftone images may be formed electrostatically (e.g., via a photoconductive member with a line or periodic dot pattern thereon).

SEE OR SEARCH CLASS:

430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   subclasses 42.1 through 47.5to produce a multicolor production (i.e., plural colors named or more than one color identified).
  
[List of Patents for class 399 subclass 182]    182Having image editing:
 This subclass is indented under subclass 177.  Subject matter wherein a means or method is provided that allows a particular or selected area of an original image to be modified or reproduced.
(1) Note. This subject matter includes an area of an original for reproduction in a specific or selected color.

SEE OR SEARCH THIS CLASS, SUBCLASS:

81,for operator interface panel.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/36for editing (i.e., producing a composite image by copying one or more original images or parts thereof).
EPCG03G15/04Cfor image composition (e.g., adding or superposing information on the original image).
  
[List of Patents for class 399 subclass 183]    183Selectable area:
 This subclass is indented under subclass 182.  Subject matter wherein a means or method is provided that designates a specific portion of an original image to be edited.
(1) Note. This subject matter may include a composite image produced by masking or trimming, and also detection of a marked portion (area) of the original.

SEE OR SEARCH THIS CLASS, SUBCLASS:

194,for a composite image without masking or trimming.
  
[List of Patents for class 399 subclass 184]    184Color:
 This subclass is indented under subclass 183.  Subject matter wherein a means or method is provided for selecting the color developer material being applied to a selected portion of an image-bearing member to produce a copy having a different color than the original.
(1) Note. This subject matter also including the achromatic colors -- black, gray, and white -- or transparent areas.
(2) Note. Developer material may be magnetic or nonmagnetic toner particles, or toner particles mixed with a liquid carrier material, or magnetic or nonmagnetic toner particles mixed with magnetic particles that act as carriers under the influence of a magnetic field.
(3) Note. The apparatus can also be selectively operated to produce a copy with only one color of toner present in the reproduction.
(4) Note. In most cases the units not being selected are inoperative after the time of selection. Selection may be done by an operator or automatically.
(5) Note. A full color reproduction contains all of the chromatic colors in the original. It is usually achieved by using substractive color primaries (e.g., cyan, magenta, and yellow).

SEE OR SEARCH THIS CLASS, SUBCLASS:

28,for analyzing a malfunction or potential malfunction of color reproduction.
39+,for balance control of color.
54,for color selection control.
112,for a modular or displaceable color process cartridge unit.
178+,for formation of color separation images.
223+,for development (e.g., applicators) of a color image.
298+,for transfer of a color image.
326,for fixing or fusing of a color image.
344,for cleaning a color-image-bearing surface.

SEE OR SEARCH CLASS:

430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   subclasses 42.1 through 47.5to produce a multicolor production (i.e., plural colors named or more than one color identified).
  
[List of Patents for class 399 subclass 185]    185Touch pad:
 This subclass is indented under subclass 183.  Subject matter wherein a pressure sensitive surface is used to input the area of the original to be selected.
(1) Note. The touch pad orientation may be in graphical terms of a two-dimensional x,y coordinate system.
  
[List of Patents for class 399 subclass 186]    186Details of erase light:
 This subclass is indented under subclass 182.  Subject matter wherein an illumination is applied to remove charge from a latent image by an array of individually controllable light sources.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/04for exposing (i.e., imagewise exposure by optically projecting the original image on a photoconductive recording material).
EPCG03G15/052Afor discharging nonimage areas (e.g., erasing, producing margins).
  
[List of Patents for class 399 subclass 187]    187Edge or interframe erase:
 This subclass is indented under subclass 182.  Subject matter wherein an illumination is applied to remove an electrostatic charge from an area corresponding to a border of an original image.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/04for exposing (i.e., imagewise exposure by optically projecting the original image on a photoconductive recording material).
EPCG03G15/052Afor discharging nonimage areas (e.g., erasing, producing margins).
  
[List of Patents for class 399 subclass 188]    188Copy blank leading edge:
 This subclass is indented under subclass 187.  Subject matter wherein the charge-removing illumination is operated to produce a front portion free of toner on a copy medium.
(1) Note. This subject matter may also include changes to the feed timing of the copy medium.

SEE OR SEARCH THIS CLASS, SUBCLASS:

394,for changes to the feed timing of the copy medium where no erase lights are involved.
  
[List of Patents for class 399 subclass 189]    189Cover position:
 This subclass is indented under subclass 187.  Subject matter wherein the charge-removing illumination is operated in response to detection of the position of a cover member.
  
[List of Patents for class 399 subclass 190]    190Variable size:
 This subclass is indented under subclass 187.  Subject matter wherein the charge-removing illumination is applied to a region that is changeable in size.
(1) Note. This size variation may include an area that varies due to a change in magnification or an area that is determined by detecting an original or its image.
  
[List of Patents for class 399 subclass 191]    191Using exposure light:
 This subclass is indented under subclass 187.  Subject matter wherein the charge-removing illumination is light emitted from a light source that also exposes an original.
  
[List of Patents for class 399 subclass 192]    192Side edge lamps:
 This subclass is indented under subclass 187.  Subject matter wherein the charge-removing illumination is provided by an erase light source that is positioned at the lateral sides of the photoconductive member.
  
[List of Patents for class 399 subclass 193]    193Binding offset:
 This subclass is indented under subclass 177.  Subject matter wherein a means or method is provided for shifting the position of an image with respect to a copy medium.
(1) Note. This subject matter may include erasing a portion of the latent image to produce the offset.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/04for exposing (i.e., imagewise exposure by optically projecting the original image on a photoconductive recording material).
EPCG03G15/052Afor discharging nonimage areas (e.g., erasing, producing margins).
  
[List of Patents for class 399 subclass 194]    194Composite:
 This subclass is indented under subclass 177.  Subject matter wherein a means or method is provided that reproduces exposures of several documents or portions thereof onto one copy medium as one image.
(1) Note. This subject matter may also include two separate exposures of the same original where the entire image is copied twice.

SEE OR SEARCH THIS CLASS, SUBCLASS:

183,for a composite image produced by masking or trimming.
  
[List of Patents for class 399 subclass 195]    195Generating paper feed signal:
 This subclass is indented under subclass 177.  Subject matter wherein a copy medium actuation or control signal is produced by a moving original or optical component (e.g., scanning carriage).

SEE OR SEARCH THIS CLASS, SUBCLASS:

361+,for document handling, per se.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/30in which projection is formed on a drum.
EPCG03G15/30Bwith special means to synchronize the scanning optic to the operation of other parts of the machine (e.g., photoreceptor, copy paper).
  
[List of Patents for class 399 subclass 196]    196Variable magnification:
 This subclass is indented under subclass 177.  Subject matter wherein a means or method is provided for selectively producing a copy in more than one magnification ratio.

SEE OR SEARCH THIS CLASS, SUBCLASS:

64,for optical detector of toner in a developing unit.
118,for optics with particular modular or displaceable structure.
137,for optical intermediate storage of original image.
140,for producing a microimage not variable in size.
200+,for automatic adjustment of an optical component due to a change in magnification.
209,for a repositioning of a scanning carriage due to a change in scanning length.
216,for slit exposure by pivoting mirror.
218,for specific lens during exposure.
219,for fiber optics used during exposure.

SEE OR SEARCH CLASS:

206Special Receptacle or Package,   subclass 316.1 for special receptacles for an optical or photographic means.
359Optics: Systems (Including Communication) and Elements,   subclass 12 for copying by holographic means.
385Optical Waveguides,   for optical waveguiding element, per se, particularly subclass 116 for imaging (i.e., with coherent fiber structure and includes shaping, enhancing, and correcting).

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/041for exposing with variable magnification.
JPOFIG03G15/04 117for exposing using variable magnification.
EPCG03G15/052Bfor exposing using variable magnification.
  
[List of Patents for class 399 subclass 197]    197Having calculation:
 This subclass is indented under subclass 196.  Subject matter wherein a means or method is provided that calculates the magnification ratio.
(1) Note. The input parameter may be, for example, enlargement or reduction ratios, size of copy medium, etc.
  
[List of Patents for class 399 subclass 198]    198Exposure adjustment:
 This subclass is indented under subclass 196.  Subject matter wherein a means or method is provided for varying an amount of light reaching a photoconductive member to compensate for the change in magnification.
(1) Note. An amount of light may be varied by intensity or cross-sectional area.
  
[List of Patents for class 399 subclass 199]    199Additional lens:
 This subclass is indented under subclass 196.  Subject matter wherein copy magnification is varied through an alternative optical component that focuses light by refraction.
(1) Note. An additional lens may also include a lens that is a substitute lens.

SEE OR SEARCH THIS CLASS, SUBCLASS:

118,for optics with particular modular or displaceable structure.
137,for optical intermediate storage of original image.
196+,for variable magnification during exposure.
200+,for automatic adjustment of an optical component due to a change in magnification.
209,for a repositioning of a scanning carriage due to a change in scanning length.
216,for slit exposure by pivoting mirror.
218,for specific lens during exposure.
219,for fiber optics used during exposure.

SEE OR SEARCH CLASS:

206Special Receptacle or Package,   subclass 316.1 for special receptacles for an optical or photographic means.
359Optics: Systems (Including Communication) and Elements,   subclass 12 for copying by holographic means.
  
[List of Patents for class 399 subclass 200]    200Having scanning modification:
 This subclass is indented under subclass 196.  Subject matter wherein copy magnification is varied by changing the movement of a sweeping exposure.
(1) Note. This modification may also include a change in the speed of the moving photoconductive member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

64,for optical detector of toner in a developing unit.
118,for optics with particular modular or displaceable structure.
137,for optical intermediate storage of original image.
196+,for variable magnification during exposure.
209,for a repositioning of a scanning carriage due to a change in scanning length.
216,for slit exposure by pivoting mirror.
218,for specific lens during exposure.
219,for fiber optics.

SEE OR SEARCH CLASS:

206Special Receptacle or Package,   subclass 316.1 for special receptacles for an optical or photographic means.
359Optics: Systems (Including Communication) and Elements,   subclass 12 for copying by holographic means.
385Optical Waveguides,   for optical waveguiding element, per se, particularly subclass 116 for imaging (i.e., with coherent fiber structure and includes shaping, enhancing, and correcting).
  
[List of Patents for class 399 subclass 201]    201Lens positioning:
 This subclass is indented under subclass 200.  Subject matter wherein copy magnification is varied by moving the location of an optical component that focuses light by refraction.
  
[List of Patents for class 399 subclass 202]    202Mirror or scanning carriage positioning:
 This subclass is indented under subclass 200.  Subject matter wherein an optical component that reflects light is repositioned to compensate for a change in magnification.
  
[List of Patents for class 399 subclass 203]    203Selective or convertible:
 This subclass is indented under subclass 177.  Subject matter wherein a means or method is provided that selectively operates among different exposure configurations.
(1) Note. An original may take the form of a film, book, different weight paper, etc. The most common exposure configurations are (a) an arrangement for thick or thin originals or (b) an arrangement where a book is exposed by a moving scanning carriage or (c) an arrangement where the scanning carriage is moved to a separate position and parked or (d) an arrangement where an original is moved through the exposure station by rollers.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/30in which projection is formed on a drum.
EPCG03G15/30Awith arrangements for copying different kinds of originals (e.g., sheets, books).
  
[List of Patents for class 399 subclass 204]    204Two-up copying:
 This subclass is indented under subclass 177.  Subject matter wherein a means or method is provided for separately exposing two originals on a platen.
(1) Note. Two originals being copied may be, for example, the open pages of a book.

SEE OR SEARCH THIS CLASS, SUBCLASS:

368,for feeding two originals to exposure position.
  
[List of Patents for class 399 subclass 205]    205Having reference position (relative positioning):
 This subclass is indented under subclass 177.  Subject matter wherein a means or method is provided for movement of an optical component with relative positioning to a corresponding location for an original or photoconductive member.
  
[List of Patents for class 399 subclass 206]    206Slit exposure:
 This subclass is indented under subclass 177.  Subject matter wherein a portion of an original image is projected onto a photoconductive member continuously from one end of an original to the other until the entire original is exposed.
(1) Note. This subject matter may include, for example, either producing plural latent images from one exposure by splitting the light from the original into two or more portions or producing latent images on back and forth scanning.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/04for exposing (i.e., imagewise exposure by optically projecting the original image on a photoconductive recording material).
G03G15/28in which projection is obtained by line scanning.
G03G15/30in which projection is formed on a drum.
JPOFIG03G15/04 113for slit exposure (e.g., movement of the drum and movement of the original image).
G03G15/28in which projection is obtained by line scanning.
G03G15/30in which projection is formed on a drum.
EPCG03G15/28in which projection is obtained by line scanning.
G03G15/30in which projection is formed on a drum.
  
[List of Patents for class 399 subclass 207]    207Diaphragm, shutter, shading board:
 This subclass is indented under subclass 206.  Subject matter wherein a means or method is provided between an original and a photoconductive member for regulating or adjusting the cross-sectional area of the light reaching the photoconductive member.

SEE OR SEARCH CLASS:

355Photocopying,   subclass 71 for a projection-type copier with a shutter in the illumination system.
  
[List of Patents for class 399 subclass 208]    208Speed or acceleration control:
 This subclass is indented under subclass 206.  Subject matter wherein a means or method is provided for regulating a velocity of a drive component involved in exposing an original.
(1) Note. A drive component may be an optical component, platen, or scanning carriage which may be operated by open-loop or feedback response circuitry.

SEE OR SEARCH THIS CLASS, SUBCLASS:

210,for damping or braking.
  
[List of Patents for class 399 subclass 209]    209Variable scanning (e.g., length):
 This subclass is indented under subclass 206.  Subject matter wherein a means or method is provided for changing the distance moved by a platen or a scanning carriage.

SEE OR SEARCH THIS CLASS, SUBCLASS:

64,for optical detector of toner in a developing unit.
118,for optics with particular modular or displaceable structure.
137,for optical intermediate storage of original image.
196+,for variable magnification during exposure.
200+,for automatic adjustment of an optical component due to a change in magnification.
216,for slit exposure by pivoting mirror.
218,for specific lens during exposure.
219,for fiber optics used during exposure.

SEE OR SEARCH CLASS:

206Special Receptacle or Package,   subclass 316.1 for special receptacles for an optical or photographic means.
359Optics: Systems (Including Communication) and Elements,   subclass 12 for copying by holographic means.
385Optical Waveguides,   for optical waveguiding element, per se, particularly subclass 116 for imaging (i.e., with coherent fiber structure and includes shaping, enhancing, and correcting).
  
[List of Patents for class 399 subclass 210]    210Damping or braking:
 This subclass is indented under subclass 206.  Subject matter wherein a means or method is provided for stopping the motion of a scanning carriage.

SEE OR SEARCH CLASS:

188Brakes,   subclass 381 where vibration is restrained or dissipated by resistance to sliding between the surfaces of the members.
192Clutches and Power-Stop Control,   subclasses 116.5+ for automatic operation for stopping a machine when a predetermined result is reached.
  
[List of Patents for class 399 subclass 211]    211Scanning carriage parallel to original:
 This subclass is indented under subclass 206.  Subject matter wherein a means or method is provided for scanning an original by moving a light source or reflective apparatus in parallel to a flat original.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/04for exposing (i.e., imagewise exposure by optically projecting the original image on a photoconductive recording material).
G03G15/28in which projection is obtained by line scanning.
G03G15/30in which projection is formed on a drum.
JPOFIG03G15/04 115moving the platen for the original.
  
[List of Patents for class 399 subclass 212]    212Having half-rate carriage:
 This subclass is indented under subclass 211.  Subject matter wherein a reflector for directing light from an original to a photoconductive member is provided on a member moving in coordination with the scanning carriage and at one-half the speed thereof.
(1) Note. This subject matter provides a constant optical path length as the scanning carriage moves along the original.
  
[List of Patents for class 399 subclass 213]    213Movable platen:
 This subclass is indented under subclass 206.  Subject matter wherein a holder for an original moves relative to the optical system.

SEE OR SEARCH THIS CLASS, SUBCLASS:

206,for a movable platen and moving optical system.
  
[List of Patents for class 399 subclass 214]    214Lock or clamp:
 This subclass is indented under subclass 213.  Subject matter wherein a means or method is provided for restraining the movement of the platen.
  
[List of Patents for class 399 subclass 215]    215By conveying original:
 This subclass is indented under subclass 206.  Subject matter wherein a means or method is provided for transporting an original past a stationary optical system.
(1) Note. The moving of the original may be accomplished by rollers, belts, rotating drum, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

206,for moving an original and moving an optical system.
  
[List of Patents for class 399 subclass 216]    216By pivoting mirror:
 This subclass is indented under subclass 206.  Subject matter wherein a means or method is provided for rotating a reflective apparatus about a stationary pivot point for scanning an original.
(1) Note. For a pivoting mirror on a moving scanning carriage, see the appropriate subclass under scanning.

SEE OR SEARCH THIS CLASS, SUBCLASS:

64,for optical detector of toner in a developing unit.
118,for optics with particular modular or displaceable structure.
137,for optical intermediate storage of original image.
196+,for variable magnification during exposure.
200+,for automatic adjustment of an optical component due to a change in magnification.
209,for a repositioning of a scanning carriage due to a change in scanning length.
218,for specific lens during exposure.
219,for fiber optics used during exposure.

SEE OR SEARCH CLASS:

206Special Receptacle or Package,   subclass 316.1 for special receptacles for an optical or photographic means.
359Optics: Systems (Including Communication) and Elements,   subclass 12 for copying by holographic means.
385Optical Waveguides,   for optical waveguiding element, per se, particularly subclass 116 for imaging (i.e., with coherent fiber structure and includes shaping, enhancing, and correcting).
  
[List of Patents for class 399 subclass 217]    217Full frame exposure (entire original at once):
 This subclass is indented under subclass 177.  Subject matter wherein a means or method is provided for exposing the entire original at one time.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/26in which the charge pattern is obtained by projection of the entire image (i.e., whole-frame projection).
JPOFIG03G15/04 112by exposure of entire surface.
G03G15/26in which the charge pattern is obtained by projection of the entire image (i.e., whole-frame projection).
EPCG03G15/26in which the charge pattern is obtained by projection of the entire image (i.e., whole-frame projection).
  
[List of Patents for class 399 subclass 218]    218Lens:
 This subclass is indented under subclass 177.  Subject matter wherein a particular optical component which focuses light by refraction is used during the exposure process.

SEE OR SEARCH THIS CLASS, SUBCLASS:

64,for optical detector of toner in a developing unit.
118,for optics with particular modular or displaceable structure.
137,for optical intermediate storage of original image.
196+,for variable magnification during exposure.
200+,for automatic adjustment of an optical component due to a change in magnification.
209,for a repositioning of a scanning carriage due to a change in scanning length.
216,for slit exposure by pivoting mirror.
219,for fiber optics used during exposure.

SEE OR SEARCH CLASS:

206Special Receptacle or Package,   subclass 316.1 for special receptacles for an optical or photographic means.
359Optics: Systems (Including Communication) and Elements,   subclass 12 for copying by holographic means and subclasses 642+ for lens, per se.
385Optical Waveguides,   for optical waveguiding element, per se, particularly subclass 116 for imaging (i.e., with coherent fiber structure and includes shaping, enhancing, and correcting).
  
[List of Patents for class 399 subclass 219]    219Fiber optics:
 This subclass is indented under subclass 177.  Subject matter wherein a means or method is provided for conveying light from an original image through a particular configuration of glass or plastic fibers to a photoconductive member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

64,for an optical detector of toner in a developing unit.
118,for optics with particular modular or displaceable structure.
137,for optical intermediate storage of an original image.
196+,for variable magnification during exposure.
200+,for automatic adjustment of an optical component due to a change in magnification.
209,for a repositioning of a scanning carriage due to a change in scanning length.
216,for slit exposure by pivoting mirror.
218,for specific lens during exposure.

SEE OR SEARCH CLASS:

206Special Receptacle or Package,   subclass 316.1 for special receptacles for an optical or photographic means.
359Optics: Systems (Including Communication) and Elements,   subclass 12 for copying by holographic means.
385Optical Waveguides,   for optical waveguiding element, per se, particularly subclass 116 for imaging (i.e., with coherent fiber structure and includes shaping, enhancing, and correcting).
  
[List of Patents for class 399 subclass 220]    220Light source:
 This subclass is indented under subclass 177.  Subject matter wherein a means or method is provided for emitting light to illuminate an original.
(1) Note. Types of light sources may be halogen, fluorescent, etc.
(2) Note. This subject matter may also include on-and-off timing or temperature regulation of the lamp.

SEE OR SEARCH THIS CLASS, SUBCLASS:

95,for controlling the on-and-off condition of the light source to prevent overheating the platen.

SEE OR SEARCH CLASS:

355Photocopying,   subclasses 67+ for photocopying illumination not particular to electrophotography.
362Illumination,   for illumination, per se.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/04for exposing (i.e., imagewise exposure by optically projecting the original image on a photoconductive recording material).
EPCG03G15/04Lfor details of illuminating systems (e.g., lamps, reflectors).
  
[List of Patents for class 399 subclass 221]    221Modifier (e.g., reflector, filter):
 This subclass is indented under subclass 220.  Subject matter wherein a means or method is provided between a light source and an original for changing the emitted light.

SEE OR SEARCH THIS CLASS, SUBCLASS:

207,for a light-aperture modifier between the original and the photoconductive member.
  
[List of Patents for class 399 subclass 222]    222Development:
 This subclass is indented under subclass 130.  Subject matter wherein an apparatus is provided for making visible a latent image by the application of developer material.
(1) Note. Developer material may consist of magnetic or nonmagnetic toner particles, toner particles mixed with a liquid carrier material, or magnetic or nonmagnetic toner particles mixed with magnetic particles that act as carriers under the influence of a magnetic field. Toner may also be called marking particles.

SEE OR SEARCH CLASS:

347Incremental Printing and Symbolic Information,   subclass 158 for delivering to the recording medium visible particles to develop a latent image.
427Coating Processes,   subclasses 457+ for related processes used to achieve the same result as the apparatus herewithin. Processes primarily classifiable in Class 427, subclasses 457+, focus on developing and fixing and other coating steps, but may also claim latent image-forming steps. For purposes of classification, claims which recite significant amounts of apparatus of the type used in electrophotography are not properly classifiable in Class 427, but may be classified herewithin depending on whether or not an image formation apparatus is claimed.
430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   for developing methods, subclasses 105 through 111.41for developing composition or products and subclasses 137.1-137.22 for processes of making the developing compositions.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/06for developing.
JPOFIG03G15/06for developing.
EPCG03G15/06for developing.
  
[List of Patents for class 399 subclass 223]    223Plural diverse (e.g., color):
 This subclass is indented under subclass 222.  Subject matter wherein more than one color of developer material is provided for developing one or more latent images.
(1) Note. The apparatus can also be selectively operated to produce a copy with only one color of toner present in the reproduction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

28,for analyzing a malfunction or potential malfunction of color reproduction.
39+,for balance control of color.
54,for color selection control.
112,for modular or displaceable color process cartridge unit.
178+,for formation of color separation images.
184,for color image editing of a selectable area.
298+,for transfer of a color image.
321,for fixing or fusing of a color image.
344,for cleaning a color-image-bearing surface.

SEE OR SEARCH CLASS:

118Coating Apparatus,   for coating,per se.
430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   subclass 45.2 to produce a multicolor reproduction by a liquid developing process or composition used to form the multicolor image and subclass 45.4 to produce a multicolor reproduction using developing composition having five or more different color toners (e.g., pentachrome, hexachrome, etc.) used to form the multicolor image.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/01for producing multicolored copies.
JPOFIG03G15/01 111by superposing the toners of three primary colors.
G03G15/01 113using the characteristics related to the development process.
G03G15/01 115for correcting colors.
G03G15/01 116using a one-shot color method (e.g., a mosaic method in which the toner is composed of toners of three primary colors).
G03G15/01 117for producing two-colored copies.
G03G15/08 503using a solid developer concerning colors.
EPCG03G15/01for producing multicolored copies.
  
[List of Patents for class 399 subclass 224]    224Adding toner:
 This subclass is indented under subclass 223.  Subject matter wherein developer materials of different colors are added separately to an applicator or applicators.

SEE OR SEARCH THIS CLASS, SUBCLASS:

27,for diagnostic of consumables (e.g., toner).
35,for diagnostics of cleaning a waste toner container.
49,for detection of toner involving plural control processes.
61+,for detection of toner in a developing unit.
99+,for toner removal.
106,for a toner cartridge.
120,for a new and waste toner container.
129,for supplemental exposure or charging of residual toner.
134,for image formation with photoconductive toner.
239+,for application of liquid development.
253,for conditioning dry toner.
254+,for mixing dry toner.
258+,for supplying new toner.
265+,for application of dry development.
359,for supplying reclaimed toner to the developing device.
409,for binding copies by toner.
  
[List of Patents for class 399 subclass 225]    225Single applicator:
 This subclass is indented under subclass 223.  Subject matter wherein an individual applicator selectively or sequentially applies developer material of different colors.
  
[List of Patents for class 399 subclass 226]    226Plural applicators single position:
 This subclass is indented under subclass 223.  Subject matter wherein a plurality of applicators are exchangeable in relation to a single developing position.
  
[List of Patents for class 399 subclass 227]    227Rotary type:
 This subclass is indented under subclass 226.  Subject matter wherein the plurality of applicators revolve about a common axis.
  
[List of Patents for class 399 subclass 228]    228Selectively active:
 This subclass is indented under subclass 223.  Subject matter wherein an arrangement is provided for activating an applicator from a plurality of applicators that are all in developing positions for applying colored developer material.
(1) Note. This subject matter is usually provided to prevent the nonselected device from applying toner to the photoconductive member. This subject matter may also include movement away from the photoconductor.

SEE OR SEARCH THIS CLASS, SUBCLASS:

234,for similar subject matter involving one applicator.
  
[List of Patents for class 399 subclass 229]    229By magnetic means:
 This subclass is indented under subclass 228.  Subject matter wherein the selective activation means includes a magnetic member.
  
[List of Patents for class 399 subclass 230]    230By diverting toner:
 This subclass is indented under subclass 228.  Subject matter wherein the selective activation means includes changing or stopping the flow of developing material.
  
[List of Patents for class 399 subclass 231]    231Toner images overlapped:
 This subclass is indented under subclass 223.  Subject matter wherein a second or subsequent toner image is developed on the previously developed image(s).

SEE OR SEARCH CLASS:

118Coating Apparatus,   for coating, per se.
430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   subclasses 42.1 through 47.5to produce a multicolor production (i.e., plural colors named or more than one color identified).

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/01for producing multicolored copies.
EPCG03G15/01S1Bonto which the monocolor images are superposed before common transfer.
G03G15/01S1B1with special treatment between monocolor image formation.
  
[List of Patents for class 399 subclass 232]    232Opposite polarity:
 This subclass is indented under subclass 231.  Subject matter wherein the overlapped toner image is of a different polarity then the previous latent image or toner charge polarity.

SEE OR SEARCH CLASS:

430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   subclasses 42.1 through 47.5to produce a multicolor production (i.e., plural colors named or more than one color identified).
  
[List of Patents for class 399 subclass 233]    233Liquid:
 This subclass is indented under subclass 223.  Subject matter wherein a latent image is developed with different color liquid developer material.
(1) Note. Liquid developer material (i.e., liquid toner) is usually toner particles mixed with a liquid carrier material.

SEE OR SEARCH CLASS:

430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   subclasses 42+ for related subject matter (i.e., colored image products).
  
[List of Patents for class 399 subclass 234]    234Development prevention:
 This subclass is indented under subclass 222.  Subject matter wherein means or method is provided for restraining the flow of toner to prevent unwanted development (e.g., nonimage areas).
(1) Note. This subject matter includes the prevention of applying toner on a photoconductive member and does not include using erase lights for limiting development of a latent image. For prevention of development by use of erase lights, see SEARCH THIS CLASS, SUBCLASS below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

98,for preventing deposition of airborne contaminant toner.
169,for preventing development by controlling the area to be charged.
186,for preventing development of part of the a latent image by using erase lights.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/08for using solid developer, powder developer.
JPOFIG03G15/08 507Hfor driving and stopping.
  
[List of Patents for class 399 subclass 235]    235Bias voltage:
 This subclass is indented under subclass 234.  Subject matter wherein an electrical potential prevents unwanted toner from being applied.

SEE OR SEARCH CLASS:

427Coating Processes,   subclasses 457+ for related processes used to achieve the same result as the apparatus herewithin. Processes primarily classifiable in Class 427, subclasses 457+, focus on developing and fixing and other coating steps, but may also claim latent image-forming steps. For purposes of classification, claims which recite significant numbers of apparatus of the type used in electrophotography are not properly classifiable in Class 427, but may be classified herewithin depending on whether or not an image-formation apparatus is claimed.
  
[List of Patents for class 399 subclass 236]    236Applicator speed:
 This subclass is indented under subclass 222.  Subject matter wherein a driving arrangement is provided that sets or regulates a velocity at which developer is applied to developing means.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/08for using solid developer, powder developer.
G03G15/09for using a magnetic brush.
G03G15/10for using a liquid developer.
JPOFIG03G15/08 507Hfor driving and stopping.
  
[List of Patents for class 399 subclass 237]    237Liquid development:
 This subclass is indented under subclass 222.  Subject matter wherein a liquid developer is applied to render the latent image visible.
(1) Note. Liquid developer material (i.e., liquid toner) is usually toner particles mixed with a liquid carrier material.
(2) Note. The liquid carrier may be an insulator hydrocarbon liquid (e.g., kerosine).
(3) Note. This subject matter does not include dry toner of granular or particle type even though it may possess fluid properties. For dry toner, see SEARCH THIS CLASS, SUBCLASS in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

233,for liquid color development.
252+,for dry toner.

SEE OR SEARCH CLASS:

118Coating Apparatus,   for coating, per se.
137Fluid Handling,   for fluid handling, per se.
141Fluent Material Handling, With Receiver or Receiver Coacting Means,   for fluid handling.
204Chemistry: Electrical and Wave Energy,   subclasses 194 through 297.16for electrolytic apparatus, subclasses 600-650 for electrophoretic or electro-osmotic apparatus, and subclasses 660-674 for apparatus for electrical (including simultaneous electrical and magnetic) separation or purification of liquid or magnetic treatment of liquid (other than separation).
210Liquid Purification or Separation,   subclasses 222+ for magnetic liquid separation, per se.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/10for using a liquid developer.
JPOFIG03G15/10 116using a liquid developer for wetting the recording material.
EPCG03G15/10for using a liquid developer.
  
[List of Patents for class 399 subclass 238]    238Having dispensing:
 This subclass is indented under subclass 237.  Subject matter wherein liquid toner is supplied or transported to an apparatus for applying toner.

SEE OR SEARCH THIS CLASS, SUBCLASS:

239+,for applying liquid developer by application member.
246+,for spraying liquid developer.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/10for using a liquid developer.
JPOFIG03G15/10 114using a liquid developer for supplying a new developer.
EPCG03G15/10for using a liquid developer.
  
[List of Patents for class 399 subclass 239]    239Application member (e.g., roller, belt):
 This subclass is indented under subclass 237.  Subject matter wherein an apparatus is provided for applying the liquid developer material to a latent image.
(1) Note. Liquid developer material (i.e., liquid toner) is usually toner particles mixed with a liquid carrier material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

27,for diagnostic of consumables (e.g., toner).
35,for diagnostics of cleaning a waste toner container.
49,for detection of toner involving plural control processes.
61+,for detection of toner in a developing unit.
99+,for toner removal.
106,for a toner cartridge.
120,for a new and waste toner container.
129,for supplemental exposure or charging of residual toner.
134,for image formation with photoconductive toner.
224,for adding colored toner.
253,for conditioning dry toner.
254+,for mixing dry toner.
258+,for supplying new toner.
265+,for application of dry development.
359,for supplying reclaimed toner to the developing device.
409,for binding copies by toner.

SEE OR SEARCH CLASS:

118Coating Apparatus,   for coating, per se.
137Fluid Handling,   for fluid handling, per se.
141Fluent Material Handling, With Receiver or Receiver Coacting Means,   for fluid handling.
204Chemistry: Electrical and Wave Energy,   subclasses 194 through 297.16for electrolytic apparatus, subclasses 600-650 for electrophoretic or electro-osmotic apparatus, and subclasses 660-674 for apparatus for electrical (including simultaneous electrical and magnetic) separation or purification of liquid or magnetic treatment of liquid (other than separation).
210Liquid Purification or Separation,   subclasses 222+ for magnetic liquid separation, per se.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/10for using a liquid developer.
JPOFIG03G15/10 112using a developer roller.
  
[List of Patents for class 399 subclass 240]    240Having applied bias:
 This subclass is indented under subclass 239.  Subject matter wherein the application member is maintained at a predetermined electrical potential to aid in or influence the development.

SEE OR SEARCH THIS CLASS, SUBCLASS:

55,for controlling a bias which influences development.
241,for liquid development with an electrode influencing the attraction of liquid developer.
270+,for a magnetic brush-type application member with applied bias.
285,for a roller-type application member with applied bias.
291,for a powder cloud applicator with electrode(s) influencing the attraction of dry developer.
293,for a fluidized bed applicator with electrode(s) influencing the attraction of dry developer.
295,for a cascade applicator with electrode(s) influencing the attraction of dry developer.
314,for an electrostatic transfer with applied bias.
354,for cleaning an imaging surface using a fibrous brush with applied voltage.

SEE OR SEARCH CLASS:

430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   subclass 118.4 for processes of applying electrical bias in liquid development processes.
  
[List of Patents for class 399 subclass 241]    241Having electrode:
 This subclass is indented under subclass 237.  Subject matter wherein a bias voltage is provided to influence the attraction of liquid developer material to a latent image-bearing member.
(1) Note. For example, this apparatus may include wires or a screen having an applied voltage.
(2) Note. Liquid developer material (i.e., liquid toner) is usually toner particles mixed with a liquid carrier material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

55,for controlling a bias which influences development.
240,for a liquid application member with applied bias.
270+,for a magnetic brush-type application member with applied bias.
285,fora roller-type application member with applied bias.
291,for a powder cloud applicator with electrode(s) influencing the attraction of dry developer.
293,for a fluidized bed applicator with electrode(s) influencing the attraction of dry developer.
295,for a cascade applicator with electrode(s) influencing the attraction of dry developer.
314,for an electrostatic transfer with applied bias.
354,for cleaning an imaging surface using a fibrous brush with applied voltage.

SEE OR SEARCH CLASS:

204Chemistry: Electrical and Wave Energy,   subclasses 194 through 297.16for electrolytic apparatus, subclasses 600-650 for electrophoretic or electro-osmotic apparatus, and subclasses 660-674 for apparatus for electrical (including simultaneous electrical and magnetic) separation or purification of liquid or magnetic treatment of liquid (other than separation).
210Liquid Purification or Separation,   subclasses 222+ for magnetic liquid separation, per se.
430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   subclass 118.4 for processes of applying electrical bias in liquid development processes.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/10for using a liquid developer.
JPOFIG03G15/06 102for developing using electrode bias for a liquid developer.
EPCG03G15/06for developing.
  
[List of Patents for class 399 subclass 242]    242Sequential:
 This subclass is indented under subclass 241.  Subject matter wherein the electrode is in the form of a plurality of sections or elements which each affects the development in turn.
  
[List of Patents for class 399 subclass 243]    243Flexible:
 This subclass is indented under subclass 241.  Subject matter wherein the electrode is pliant.
  
[List of Patents for class 399 subclass 244]    244Screen:
 This subclass is indented under subclass 241.  Subject matter wherein the electrode is a wire mesh or a plate with holes therethrough.
  
[List of Patents for class 399 subclass 245]    245Self-cleaning:
 This subclass is indented under subclass 241.  Subject matter wherein an arrangement is provided for maintaining the electrode free from excessive deposits of liquid developer material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

34+,for cleaning diagnostics.
71,for control of cleaning during the electrophotography process.
123,for a particular structure of a cleaning unit.
149,for combined development and cleaning by a single component.
327,for cleaning a fixing member.
343+,for cleaning an imaging surface (i.e., photoconductive member), including for a cleaning member cyclically movable into and out of contact with the imaging surface.

SEE OR SEARCH CLASS:

15Brushing, Scrubbing, and General Cleaning,   subclasses 1.51+ for electrostatic cleaning and subclasses 300.1+ for air blast or suction which may be used to clean electrophotographic, photoresponsive imaging surfaces.
134Cleaning and Liquid Contact With Solids,   subclasses 1+ for cleaning applications of electric, wave, ray, or radiant energy.
  
[List of Patents for class 399 subclass 246]    246Sprayed:
 This subclass is indented under subclass 237.  Subject matter wherein the liquid developer material is forced under pressure onto a latent image-bearing member.
(1) Note. The liquid developer material is usually unsupported at the moment of contact with the image surface.
(2) Note. Liquid developer material (i.e., liquid toner) is usually toner particles mixed with a liquid carrier material.

SEE OR SEARCH CLASS:

118Coating Apparatus,   for coating, per se.
137Fluid Handling,   for fluid handling, per se.
141Fluent Material Handling, With Receiver or Receiver Coacting Means,   for fluid handling.
204Chemistry: Electrical and Wave Energy,   subclasses 194 through 297.16for electrolytic apparatus, subclasses 600-650 for electrophoretic or electro-osmotic apparatus, and subclasses 660-674 for apparatus for electrical (including simultaneous electrical and magnetic) separation or purification of liquid or magnetic treatment of liquid (other than separation).
210Liquid Purification or Separation,   subclasses 222+ for magnetic liquid separation, per se.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/10for using a liquid developer.
JPOFIG03G15/10 117using a liquid developer for applying mist by using a liquid.
  
[List of Patents for class 399 subclass 247]    247Fountain:
 This subclass is indented under subclass 246.  Subject matter wherein the liquid developer material is pumped against the force of gravity to a point where it contacts a latent image-bearing member and subsequently flows into a drainage outlet.
  
[List of Patents for class 399 subclass 248]    248Immersion:
 This subclass is indented under subclass 237.  Subject matter wherein a latent image-bearing member is passed through a pool of the liquid developer material.

SEE OR SEARCH CLASS:

118Coating Apparatus,   for coating, per se.
137Fluid Handling,   for fluid handling, per se.
141Fluent Material Handling, With Receiver or Receiver Coacting Means,   for fluid handling.
204Chemistry: Electrical and Wave Energy,   subclasses 194 through 297.16for electrolytic apparatus, subclasses 600-650 for electrophoretic or electro-osmotic apparatus, and subclasses 660-674 for apparatus for electrical (including simultaneous electrical and magnetic) separation or purification of liquid or magnetic treatment of liquid (other than separation).
210Liquid Purification or Separation,   subclass 222 for magnetic liquid separation, per se.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/10for using a liquid developer.
JPOFIG03G15/10 111using a developer tray.
EPCG03G15/10Ifor using a liquid developer with which the recording material is brought in contact (e.g., immersion or surface immersion development).
  
[List of Patents for class 399 subclass 249]    249Removing excess developer (e.g., squeegee):
 This subclass is indented under subclass 237.  Subject matter wherein an arrangement is provided for removing excess liquid developer material from a developed image before transfer.
(1) Note. Liquid developer material (i.e., liquid toner) is usually toner particles mixed with a liquid carrier material.

SEE OR SEARCH CLASS:

430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   subclass 117.3 for processes of liquid developer removal.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/10for using a liquid developer.
JPOFIG03G15/10 113for removing excess toner from developed images.
EPCG03G15/10Efor removing excess developer.
  
[List of Patents for class 399 subclass 250]    250Liquid carrier condensation:
 This subclass is indented under subclass 237.  Subject matter wherein liquid developer material is condensed to recover the liquid carrier material.

SEE OR SEARCH CLASS:

204Chemistry: Electrical and Wave Energy,   subclasses 194 through 297.16for electrolytic apparatus, subclasses 600-650 for electrophoretic or electro-osmotic apparatus, and subclasses 660-674 for apparatus for electrical (including simultaneous electrical and magnetic) separation or purification of liquid or magnetic treatment of liquid (other than separation).
210Liquid Purification or Separation,   subclasses 222+ for magnetic liquid separation, per se.
261Gas and Liquid Contact Apparatus,   for an intimate contact between gases and liquids to exchange properties or mutually modify conditions.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/10for using a liquid developer.
EPCG03G15/10Ffor condensing developer fumes.
  
[List of Patents for class 399 subclass 251]    251Drying (e.g., warming, heating):
 This subclass is indented under subclass 237.  Subject matter wherein an arrangement is provided for removing liquid carrier moisture content from a copy medium.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/11for removing excess liquid developer (e.g., by heat).
JPOFIG03G15/11for removing excess liquid developer (e.g., by heat).
G03G15/12heating device.
EPCG03G15/12for warming (i.e., drying or recording material developed with a liquid developer).
  
[List of Patents for class 399 subclass 252]    252Dry development:
 This subclass is indented under subclass 222.  Subject matter wherein a dry developer material is applied to render the latent image visible.
(1) Note. Dry developer material may be toner particles (magnetic or nonmagnetic) mixed with magnetic particles that act as carriers under the influence of a magnetic field.
(2) Note. For example, this subject matter may include immersion of the latent image in dry toner. For immersion with liquid toner, see SEARCH THIS CLASS, SUBCLASS in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

248,for liquid toner immersion of an image-bearing member.

SEE OR SEARCH CLASS:

118Coating Apparatus,   for coating, per se.
141Fluent Material Handling, With Receiver or Receiver Coacting Means,   for fluent material handling.
430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   subclasses 120.1 through 123.58for the processes of dry powder developing.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/08for using solid developer, powder developer.
JPOFIG03G15/08 502for a developing method.
G03G15/08 507for special methods and devices.
EPCG03G15/08for using solid developer, powder developer.
G03G15/08Gfor immersion.
  
[List of Patents for class 399 subclass 253]    253Conditioning of toner:
 This subclass is indented under subclass 252.  Subject matter wherein an arrangement is provided for treating impurities or unwanted effects and properties of dry developer material.
(1) Note. For example, this subject matter may include filtered toner being recycled from a cleaning unit.
(2) Note. For example, this subject matter may include an arrangement for preventing wrongly charged toner from being applied to a latent image.
(3) Note. The toner may be treated when fed into or when in the developing unit (e.g., treated to remove impurities or heated to remove moisture or coating).

SEE OR SEARCH THIS CLASS, SUBCLASS:

27,for diagnostic of consumables (e.g., toner).
35,for diagnostics of cleaning a waste toner container.
49,for detection of toner involving plural control processes.
61+,for detection of toner in a developing unit.
99+,for toner removal.
106,for a toner cartridge.
120,for a new and waste toner container.
129,for supplemental exposure or charging of residual toner.
134,for image formation with photoconductive toner.
224,for adding colored toner.
239+,for application of liquid development.
254+,for mixing dry toner.
258+,for supplying new toner.
265+,for application of dry development.
359,for supplying reclaimed toner to the developing device.
409,for binding copies by toner.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/08for using solid developer, powder developer.
EPCG03G15/08H5arrangement for conditioning developer in the developing sump (e.g., removing impurities or humidity).
  
[List of Patents for class 399 subclass 254]    254Mixing:
 This subclass is indented under subclass 252.  Subject matter wherein the dry developer material is stirred or agitated in a developing unit.
(1) Note. For example, this subject matter may include blending toner with carrier particles, and it may also include stirring toner before the start of image formation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

27,for diagnostic of consumables (e.g., toner).
35,for diagnostics of cleaning a waste toner container.
49,for detection of toner involving plural control processes.
61+,for detection of toner in a developing unit.
99+,for toner removal.
106,for a toner cartridge.
120,for a new and waste toner container.
129,for supplemental exposure or charging of residual toner.
134,for image formation with photoconductive toner.
224,for adding colored toner.
239+,for application of liquid development.
253,for conditioning dry toner.
258+,for supplying new toner.
262,for stirring developing material (toner) in a supply hopper or cartridge.
265+,for application of dry development.
359,for supplying reclaimed toner to the developing device.
409,for binding copies by toner.

SEE OR SEARCH CLASS:

366Agitating,   for mixing or agitating materials together.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/08for using solid developer, powder developer.
JPOFIG03G15/08 110for agitating.
G03G15/08 507Dfor circulating and transporting.
EPCG03G15/08Harrangement for preparing, mixing, transporting, or dispensing developer.
G03G15/08H3Darrangement for metering and dispensing toner into the development sump; Toner hoppers; Augers.
  
[List of Patents for class 399 subclass 255]    255Having new toner:
 This subclass is indented under subclass 254.  Subject matter wherein additional new developer material is mixed with developer material in the developing unit.

SEE OR SEARCH CLASS:

366Agitating,   for mixing or agitating materials together.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/08for using solid developer, powder developer.
JPOFIG03G15/08 507Efor supplying and agitating.
  
[List of Patents for class 399 subclass 256]    256Auger:
 This subclass is indented under subclass 254.  Subject matter wherein the mixing is provided by a rotating spiral member.

SEE OR SEARCH CLASS:

366Agitating,   for mixing or agitating materials together.
  
[List of Patents for class 399 subclass 257]    257Purging:
 This subclass is indented under subclass 252.  Subject matter wherein an arrangement is provided for removing dry developer material from the developing device.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/08for using solid developer, powder developer.
JPOFIG03G15/08 507Cfor collecting.
EPCG03G15/08H4arrangement for purging used developer from the developing unit.
  
[List of Patents for class 399 subclass 258]    258Supplying new toner:
 This subclass is indented under subclass 252.  Subject matter wherein an arrangement is provided for supplying unused dry developer from a supply hopper to a sump.
(1) Note. This subject matter may include supplying carrier particles and feeding back toner to a supply hopper.

SEE OR SEARCH THIS CLASS, SUBCLASS:

27,for diagnostic of consumables (e.g., toner).
35,for diagnostics of cleaning a waste toner container.
49,for detection of toner involving plural control processes.
61+,for detection of toner in a developing unit.
99+,for toner removal.
106,for a toner cartridge.
120,for a new and waste toner container.
129,for supplemental exposure or charging of residual toner.
134,for image formation with photoconductive toner.
224,for adding colored toner.
239+,for application of liquid development.
253,for conditioning dry toner.
254+,for mixing dry toner.
265+,for application of dry development.
359,for supplying reclaimed toner to the developing device.
409,for binding copies by toner.

SEE OR SEARCH CLASS:

53Package Making,   for package making, per se.
222Dispensing,   for dispensing material from a container.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/08for using solid developer, powder developer.
JPOFIG03G15/08 507Cfor collecting.
EPCG03G15/08Harrangement for preparing, mixing, transporting, or dispensing developer.
G03G15/08H3arrangement for supplying new toner; Toner cartridges.
G03G15/08H3Darrangement for metering and dispensing toner into the development sump; Toner hoppers; Augers.
  
[List of Patents for class 399 subclass 259]    259Diverse (e.g., carrier and toner):
 This subclass is indented under subclass 258.  Subject matter wherein an arrangement is provided for supplying plural types (not color) or components of developer material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

224,for supplying plural colors of toner.
  
[List of Patents for class 399 subclass 260]    260Metering (regulating, gate, discharge ports):
 This subclass is indented under subclass 258.  Subject matter wherein an arrangement is provided for controlling the amount of dispensed toner.

SEE OR SEARCH THIS CLASS, SUBCLASS:

53+,for controlling the dispensed amount in response to a sensed condition.
  
[List of Patents for class 399 subclass 261]    261Vibration:
 This subclass is indented under subclass 258.  Subject matter wherein an arrangement is provided for dispensing toner by shaking its container.
  
[List of Patents for class 399 subclass 262]    262Cartridge:
 This subclass is indented under subclass 258.  Subject matter wherein an arrangement is provided for a removable container that holds and dispenses dry developer material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

119,for a modular or displaceable developing unit having a particular structure.

SEE OR SEARCH CLASS:

53Package Making,   for package making, per se.
206Special Receptacle or Package,   subclasses 449+ for a plate or sheet.
220Receptacles,   for receptacles, per se.
222Dispensing,   for dispensing material from a container.
401Coating Implements With Material Supply,   subclass 132 for rupturable seals.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/08for using solid developer, powder developer.
EPCG03G15/08H3Darrangement for metering and dispensing toner into the development sump; Toner hoppers; Augers.
G03G15/08H3Rfor using a sealing film to be ruptured or cut.
  
[List of Patents for class 399 subclass 263]    263Having internal rotary member:
 This subclass is indented under subclass 262.  Subject matter wherein the removable cartridge provides an arrangement for stirring or mixing the dry developer material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

254,for mixing dry developer.
  
[List of Patents for class 399 subclass 264]    264Removing excess developer:
 This subclass is indented under subclass 252.  Subject matter wherein an arrangement is provided for removing surplus dry developer material or carrier particles from a developed image.

SEE OR SEARCH THIS CLASS, SUBCLASS:

249,for similar subject matter used with a liquid developed image.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/095for removing excess solid developer.
JPOFIG03G15/08 507Rfor removing excess solid toner from developer images.
EPCG03G15/08Rarrangement for removing carriers or excess toner from a developed image (e.g., fog preventing).
  
[List of Patents for class 399 subclass 265]    265Application member:
 This subclass is indented under subclass 252.  Subject matter wherein an apparatus is provided for transporting dry developer material to a position where it is attracted to a latent image by an electrostatic force.
(1) Note. Dry developer material may be toner particles mixed with magnetic particles that act as carriers under the influence of a magnetic field.

SEE OR SEARCH THIS CLASS, SUBCLASS:

27,for diagnostic of consumables (e.g., toner).
35,for diagnostics of cleaning a waste toner container.
49,for detection of toner involving plural control processes.
61+,for detection of toner in a developing unit.
99+,for toner removal.
106,for a toner cartridge.
120,for a new and waste toner container.
129,for supplemental exposure or charging of residual toner.
134,for image formation with photoconductive toner.
224,for adding colored toner.
239+,for application of liquid development.
253,for conditioning dry toner.
254+,for mixing dry toner.
258+,for supplying new toner.
359,for supplying reclaimed toner to the developing device.
409,for binding copies by toner.

SEE OR SEARCH CLASS:

118Coating Apparatus,   for coating, per se.
  
[List of Patents for class 399 subclass 266]    266Having cloud-forming application:
 This subclass is indented under subclass 265.  Subject matter wherein an alternating current electrode or magnetic field generating member creates a nebulous mass of toner between the application member and the latent image.
(1) Note. The electrode may be, for example, a wire (or wires) or screen.
  
[List of Patents for class 399 subclass 267]    267Magnetic brush:
 This subclass is indented under subclass 265.  Subject matter wherein the application member aligns the dry developer material by its magnetic field in the form of a brushlike configuration.
(1) Note. For example, this subject matter may include an arrangement for electrically discharging the surface of a magnetic brushlike structure.
(2) Note. For example, this subject matter may include vibrating the magnetic brush.
(3) Note. For example, this subject matter may include details for housing or casing, per se.
(4) Note. For example, this subject matter may include magnetic structures on opposing sides of a latent image-bearing member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

272,for a magnetic brush used to load a magnetic brush application member.
281,for a magnetic bush used to load a developing roller application member.

SEE OR SEARCH CLASS:

430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   subclasses 122.1 through 122.8for processes of magnetic brush developing.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/09for using a magnetic brush.
JPOFIG03G15/09for using a magnetic brush.
EPCG03G15/09for using a magnetic brush.
G03G15/09Dwith one-component toner.
  
[List of Patents for class 399 subclass 268]    268Having sheet guide:
 This subclass is indented under subclass 267.  Subject matter wherein an arrangement is provided for positioning a latent image-bearing copy medium in relation to a magnetic brush developing device.
  
[List of Patents for class 399 subclass 269]    269Plural:
 This subclass is indented under subclass 267.  Subject matter wherein two or more magnetic brushes apply dry developer material to a latent image.
  
[List of Patents for class 399 subclass 270]    270Having applied bias:
 This subclass is indented under subclass 267.  Subject matter wherein the magnetic brush is maintained at a predetermined electrical potential to aid in or influence the development.

SEE OR SEARCH THIS CLASS, SUBCLASS:

55,for controlling a bias which influences development.
240,for a liquid application member with applied bias.
241,for liquid development with electrode influencing the attraction of liquid developer.
285,for a roller-type application member with applied bias.
291,for a powder cloud applicator with electrode(s) influencing the attraction of dry developer.
293,for a fluidized bed applicator with electrode(s) influencing the attraction of dry developer.
295,for a cascade applicator with electrode(s) influencing the attraction of dry developer.
314,for an electrostatic transfer with applied bias.
354,for cleaning an imaging surface using a fibrous brush with applied voltage.

SEE OR SEARCH CLASS:

430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   subclass 122.8 for processes of magnetic developing by application of an identified voltage.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/09for using a magnetic brush.
EPCG03G15/09Bfor using a magnetic brush with bias voltage.
  
[List of Patents for class 399 subclass 271]    271Auxiliary electrode:
 This subclass is indented under subclass 270.  Subject matter wherein a developing bias is applied to a member separate from and in addition to the magnetic brush.
  
[List of Patents for class 399 subclass 272]    272Loading:
 This subclass is indented under subclass 267.  Subject matter wherein an arrangement is provided for applying dry developer material onto the magnetic brush.

SEE OR SEARCH THIS CLASS, SUBCLASS:

281+,for loading a roller.
  
[List of Patents for class 399 subclass 273]    273Unloading (e.g., scraper):
 This subclass is indented under subclass 267.  Subject matter wherein an arrangement is provided for removing dry developer material from the magnetic brush after development.

SEE OR SEARCH THIS CLASS, SUBCLASS:

283,for unloading a roller.
  
[List of Patents for class 399 subclass 274]    274Regulating (e.g., doctor):
 This subclass is indented under subclass 267.  Subject matter wherein an arrangement is provided for leveling or removing excess dry developer material on the magnetic brush before applying it to a latent image-bearing member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

284,for regulating a roller.

SEE OR SEARCH CLASS:

118Coating Apparatus,   subclass 261 for a doctor or film distributing engaging applicator.
  
[List of Patents for class 399 subclass 275]    275Having stationary magnet:
 This subclass is indented under subclass 274.  Subject matter wherein the regulating member is a magnetic brush having a fixed (i.e., nonrotating) magnet structure.
(1) Note. For example, this subject matter may include a stated spatial relationship between the application member and one or more magnetic poles.
  
[List of Patents for class 399 subclass 276]    276Sleeve:
 This subclass is indented under subclass 267.  Subject matter wherein the magnetic brush is surrounded by a nonmagnetic shell.
(1) Note. For example, this subject matter may include the composition, structure (e.g., layer), or surface properties (e.g., roughness) of the sleeve.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/09for using a magnetic brush.
EPCG03G15/09E1for relating to the shell structure (e.g., structure composition of a magnetic brush).
  
[List of Patents for class 399 subclass 277]    277Magnet:
 This subclass is indented under subclass 267.  Subject matter wherein the magnet structure has a particular construction, orientation, or strength.

SEE OR SEARCH CLASS:

335Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,   for magnets and electromagnets, per se.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/09for using a magnetic brush.
JPOFIG03G15/09Afor structuring and manufacturing the magnetic roller.
EPCG03G15/09Efor details concerning the magnetic brush roller structure (e.g., magnet configuration).
  
[List of Patents for class 399 subclass 278]    278Web or belt:
 This subclass is indented under subclass 277.  Subject matter wherein the magnetic brush applicator is in the form of a web or belt.
  
[List of Patents for class 399 subclass 279]    279Roller:
 This subclass is indented under subclass 265.  Subject matter wherein the application member is a rotatable cylinder.

SEE OR SEARCH CLASS:

29Metal Working,   subclasses 895+ for roller making.
430Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   subclass 123.3 for developing processes using a chemically identified developer application member.
492Roll or Roller,   for structure of rollers, per se.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/08for using solid developer, powder developer.
JPOFIG03G15/08 501for developer carriers (using a magnetic brush 15/09).
EPCG03G15/08Fon a donor element (e.g., web, roller).
  
[List of Patents for class 399 subclass 280]    280Having eccentric film:
 This subclass is indented under subclass 279.  Subject matter wherein the roller is surrounded with a thin, flexible member of larger circumference than the roller used for applying the dry developer material to a latent image-bearing member.
  
[List of Patents for class 399 subclass 281]    281Loading:
 This subclass is indented under subclass 279.  Subject matter wherein an arrangement is provided for applying dry developer material onto the roller.

SEE OR SEARCH THIS CLASS, SUBCLASS:

272,for loading a magnetic brush.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/08for using solid developer, powder developer.
JPOFIG03G15/08 501Afor a supply roller.
  
[List of Patents for class 399 subclass 282]    282By magnetic brush:
 This subclass is indented under subclass 281.  Subject matter wherein the loading is by a member that conveys or aligns developer material in its magnetic field.

SEE OR SEARCH THIS CLASS, SUBCLASS:

267,for a magnetic brush that applies developer to a latent image.
  
[List of Patents for class 399 subclass 283]    283Unloading (e.g., scraper):
 This subclass is indented under subclass 279.  Subject matter wherein an arrangement is provided for removing dry developer material from the roller after development.

SEE OR SEARCH THIS CLASS, SUBCLASS:

273,for unloading a magnetic brush.
  
[List of Patents for class 399 subclass 284]    284Regulating (e.g., doctor):
 This subclass is indented under subclass 279.  Subject matter wherein an arrangement is provided for leveling or removing excess dry developer material on the roller before applying it to a latent image-bearing member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

274+,for regulating a magnetic brush.

SEE OR SEARCH CLASS:

118Coating Apparatus,   subclass 261 for a doctor or film distributing engaging applicator.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/08for using solid developer, powder developer.
JPOFIG03G15/08 504for controlling toner layer thickness (using a magnetic brush 15/09).
  
[List of Patents for class 399 subclass 285]    285Having applied bias:
 This subclass is indented under subclass 279.  Subject matter wherein the roller is maintained at a predetermined electrical potential to aid in or influence the development.

SEE OR SEARCH THIS CLASS, SUBCLASS:

55,for controlling a bias which influences development.
240,for a liquid application member with applied bias.
241,for liquid development with electrode influencing the attraction of liquid developer.
270+,for a magnetic brush-type application member with applied bias.
291,for a powder cloud applicator with electrode(s) influencing the attraction of dry developer.
293,for a fluidized bed applicator with electrode(s) influencing the attraction of dry developer.
295,for a cascade applicator with electrode(s) influencing the attraction of dry developer.
314,for an electrostatic transfer with applied bias.
354,for cleaning an imaging surface using a fibrous brush with applied voltage.
  
[List of Patents for class 399 subclass 286]    286Details:
 This subclass is indented under subclass 279.  Subject matter wherein the roller consists of a specific composition or of specific surface properties.

SEE OR SEARCH CLASS:

29Metal Working,   subclasses 895+ for roller making.
492Roll or Roller,   for structure of rollers, per se.

OTHER CLASSIFICATION SYSTEMS:

Type:Class/Subclass:Group:Description:
IPC6G03G15/08for using solid developer, powder developer.
JPOFIG03G15/08 501Cfor a roller with surface roughness.