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 [Search a list of Patent Appplications for class 347]   CLASS 347,INCREMENTAL PRINTING OF SYMBOLIC INFORMATION
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SECTION I - CLASS DEFINITION

This class provides for processes and apparatus for conveying information by selectively creating on a medium a visibly distinguishable symbol* or mark* composed of a plurality of portions*. The symbol* or mark* is created portion* by portion* as, for example, by pixels or dots. The symbol* or mark* may be an alphanumeric character or an image.

SCOPE OF THIS CLASS (347)

(1) Note. The symbol* or mark* is created portion* by portion*. A symbol* or mark* which is not created portion* by portion* is found elsewhere. For example, printing type, typewriters, stencils, and hand stamps create a whole mark* rather than a mark* portion* by portion*. (See References to Other Classes, below, for these latter classes).
(2) Note. The symbol or mark which is created using a character supporting electrode stylus by which an electrostatic charge is deposited onto or discharged from a medium is, however, classified in this class (347).
(3) Note. The symbol* or mark* conveys information. Information is the communication of knowledge or intelligence. For example, an alphanumeric character and an image are marks* which convey information. A code (e.g., a bar code) is a mark* which conveys information.
(4) Note. A visibly distinguishable mark* created portion* by portion* for a purpose other than conveying information is found elsewhere. For an example of a coating formed in this manner, see References to Other Classes below.
(5) Note. Some portion* by portion* marks* in a specific situation are found elsewhere. For a portion* by portion* mark in the production of a printing plate see References to Other Classes, below.
(6) Note. The marking* can be combined* for a special purpose. Special purpose devices are found elsewhere; e.g., facsimile devices, electrophotographic copiers, labelers, and recorders. (See References to Other Classes, below.)
(7) Note. The marking* device is made up of several portions*: a combined* portion, a controller portion, a head* portion, a marking* portion, a medium portion, and a housing portion. The combined* portion is the combination of a marking* device and an external means which functions as a special information marking* system. The controller portion contains the means to direct the operation of the marking* device or any of its component parts. The head* portion contains the means which provides the marking*. The marking* portion contains the specifics of the marking* (e.g., the fluid, the impact, the heat, the electricity, and the radiation). The mechanism portion contains the medium, its handling, and its processing. The housing portion* contains an outer enclosure for the marking* device.

SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS

This class (347) provides for "stand-alone" incremental printers such as ink jet, laser, thermal, dot-matrix, or electrostatic printers. These devices, for the most part, are now classified in Class 346, Recorders, and Class 400, Typewriting Machines.

Other types of informational marking* are found elsewhere. See References to Other Classes, below.

Subcombinations of this subject matter can be found in various areas. For example, media and media handling means are found elsewhere (see References to Other Classes, below).

As these arts are reclassified, appropriate subject matter will be transferred to this class (347). See Other Classification Systems, below, for the appropriate IPC subclass for the art of this class (347).

SECTION III - REFERENCES TO OTHER CLASSES

SEE OR SEARCH CLASS:

101, Printing,   appropriate subclasses for means adopted to produce characters or designs on a surface by impression of types or die or by applying coating matter thereto through openings of previous portions* of a pattern sheet, as in stenciling, or by impression from planographic or intaglio surfaces. (see Class definition, Scope of the Class, (1) Note, (5) Note; also see Lines With Other Classes, above, re informational marking other than a Class 347 type).
118, Coating Apparatus,   appropriate subclasses for devices for applying or obtaining a surface coating on a base and/or impregnating base materials.
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,   for labelers. (See Class definition, Scope of the Class, (6) Note).
216, Etching a Substrate: Processes,   especially subclass 27 for methods of making a thermal ink jet device.
226, Advancing Material of Indeterminate Length,   appropriate subclasses for processes or apparatus for moving, sensing, threading, and constraining indeterminate material. (Also see Lines With Other Classes above re media handling subcombinations).
242, Winding, Tensioning, or Guiding,   appropriate subclasses for winding or unwinding flexible material from a reel. (See Lines With Other Classes above re media handling subcombinations).
271, Sheet Feeding or Delivering,   appropriate subclasses for means for removing individual sheets from a stock or for positioning individual sheets with respect to some mechanism for operating on them or for placing them after they have been operated upon. (Also see Lines With Other Classes, above re media handling subcombinations).
346, Recorders,   appropriate subclasses for apparatus and corresponding processes for making a record of the movement of machines or instruments or of any phenomenon capable of being detected. (See Class definition, Scope of the Class, (6) Note).
355, Photocopying,   appropriate subclasses for photos:graphically copying information from an original or carrier. (Also see Lines With Other Classes, above, re informational marking other than a Class 347 type).
358, Facsimile and Static Presentation Processing,   subclasses 1.1 through 1.18for data processing for static presentation on fixed medium (e.g., for printer), subclasses 500-540 for natural color facsimile, and subclasses 400-309 for black and white facsimile. (See Class definition, Scope of the Class, (6) Note; also see Lines With Other Classes, above, for informational marking other than a Class 347 type).
365, Static Information Storage and Retrieval,   appropriate subclasses for apparatus or processes for static storage and retrieval of information.
369, Dynamic Information Storage or Retrieval,   appropriate subclasses for processes of and apparatus for the storage or retrieval of arbitrary variable information.
396, Photography,   appropriate subclasses for devices for photographically recording an image of an object upon actuation.
399, Electrophotography,   subclasses 9+ for diagnostics, subclasses 38+ for controls, subclasses 130+ for image formation, subclasses 168+ for charging, subclasses 177+ for exposure, subclasses 222+ for development, subclasses 297+ for transfer, subclasses 320+ for fixing, subclasses 343+ for cleaning, and subclasses 361+ for document handling. (See Class definition, Scope of the Class, (6) Note).
400, Typewriting Machines,   appropriate subclasses for devices causing an intelligible character to be imprinted on a record medium by a type member. (See Class definition, Scope of the Class, (1) Note).
427, Coating Processes,   appropriate subclasses for applying or obtaining a coating on a surface. (See Class definition, Scope of the Class, (4) Note).
428, Stock Material or Miscellaneous Articles,   appropriate subclasses for stock material composites in general; for a transfer medium (e.g., ink ribbon) per se, see subclasses 195+ and 984+; for a record receiver, per se, see subclasses 195+. (Also see Lines With Other Classes above re media handling subcombinations).
430, Radiation Imagery Chemistry: Process, Composition, or Product Thereof,   appropriate subclasses for forming the likeness of an object, or an instrumented or discernable phenomenon, in a chemically defined receiver or in a receiver wherein radiation produces a chemical reaction, by use of radiation.
503, Record Receiver Having Plural Leaves or a Colorless Color Former, Method of Use, or Developer Therefor,   subclasses 200 through 226for imaging with colorless color formers and developers therefor; subclass 227 for nontextile sublimation thermal dye transfer medium or record receiver, per se, or for processes of transfer wherein the medium or the receiver is substantial to the transfer.

SECTION IV - REFERENCES TO OTHER CLASSIFICATION SYSTEMS

B41J, of the International Patent Classification (IPC). for the art in this class (347).

SECTION V - GLOSSARY

The following terms have been defined for purposes of classification in this class. In the class and subclass definition of this class, terms used in a sense defined below are indicated by an asterisk(*).

COMBINED

Means connected with the marking* device for adapting the device to a particular marking* purpose.

CONTROL

Means to regulate the operation of the head*, the medium, and the other parts of the marking* device so that the device will operate in the intended manner.

EJECTOR

The mechanism which projects the fluid* onto the medium*.

FLUID

The flowable substance which is projected from the ejector* mechanism or which is used to enhance the transport or generation of charged particles.

HEAD (Marker)

The section of the marking device which produces the visibly distinguishable or latent symbol or mark on the medium in accordance with an information signal.

MARK

A discrete area on the medium which contains the plurality of portions*. Unless otherwise indicated, "mark" and "symbol" are used synonymously in the subclass definitions of this class.

MARKING

The specific manner by which the mark* is formed; e.g., ink jet, impact, thermal, electric (e.g., toner applied to a latent image), or radiation.

MEDIUM

A substrate on which the visibly distinguishable or latent symbol or mark is formed.

PORTIONS

Elemental sections of a symbol* or mark*. An elemental section is not, itself, a symbol* or mark* as, for example, is an alphanumeric typeface used to create a picture or an image.

SYMBOL

A mark* which conveys intelligent information. Unless otherwise indicated, "mark" and "symbol" are used synonymously in the subclass definitions of this class.

TRANSDUCER

The part of the head* which converts an input signal into the force for producing the mark*.

SUBCLASSES

[List of Patents for class 347 subclass 1]    1INK JET:
 This subclass is indented under the class definition.  Subject matter wherein the symbol* or mark* is created by a projection of fluid onto a medium in a controlled manner. The fluid is projected by an ejector which does not contact the medium.
(1) Note. An ink jet generally includes a fluid*, an ejector*, a medium* for receiving the projected fluid*, and a controller. The projected fluid* on the medium* forms the marking* which represents a visualization of the information.
(2) Note. The fluid* can be any substance that flows. Generally, it is an ink, but it can be other substances such as powder, gas, etc., or a combination of these substances. Generally, the fluid*, per se, is classified with the fluid* except where a specific interconnection with the ink jet is claimed. For example, an ink for use in an ink jet would still be classified in Class 106. When other factors such as printing density or droplet volume are recited, classification in subclasses 84+ of this class (347) could be appropriate. Ink jet fluids* are classified in this class (347). Ink with a nominal recitation of ink jet is classified in Class 106, especially with ink jet composition or process. Also, ink compositions containing synthetic resins are classified elsewhere. Fluid* handling is classified in this class (347). Fluid* handling details such as pumps, valves, and filters with a nominal recitation of ink jet are classified in the classes appropriate to the details.
(3) Note. The medium* can be any substrate which accepts fluids*. Mediums are a stock material which is classified in Class 428. When specifics such as ink compositions and medium handling are recited especially adapting the medium to the ink jet, classification could be appropriate in this class (347). A distinction within this class (Class 347) is made between an object and a medium. An object is a specialized medium. For example, wire, containers, envelopes, and checks are considered objects. The ink jet informational marking* of objects is classified in this class (347). Means especially adapted to handle and/or process ink jet mediums can be found in this class (347). Medium handling means, in general, are classified elsewhere. See the search notes below.
(4) Note. Ink jet marking* is considered to be the visualization of information. Other terms such as printing, recording, and imaging can also be used to describe this marking*. The use of ink jet techniques for other purposes, such as particle sorting, is not considered marking* and therefor not appropriately classified in this class. The projection of fluid* which is not ink jet is provided in other classes. The contact projection of fluid* onto a medium* for informational marking* is classified elsewhere. See the Se
(5) Note. Ink jet combined* with a nominal recitation of some other apparatus is classified in this class (347). Nominal ink jet combined* with a significant apparatus is classified with that apparatus and cross-referenced into this class (347). See the Search This Class, Subclass notes below.
(6) Note. The control* is an element which regulates all or some part of the ink jet. For example, a central processing unit (CPU) in the ink jet would be a control*, not a combined*.
(7) Note. A computer which regulates all or some part of the ink jet would be classified in this class (347). A computer, per se, would be appropriately classified elsewhere. An interface unit for an ink jet would be appropriate elsewhere.

SEE OR SEARCH THIS CLASS, SUBCLASS:

2+,for ink jet combined* with a nominal recitation of some other apparatus, including ink jet informational marking* of objects. Nominal ink jet combined* with a significant apparatus is classified with that apparatus and cross-referenced into subclasses 2+ of this class (Class 347).(see (3) Note, and (5) Note above).
5+,for a computer which regulates all or some part of the ink jet (see (7) Note).
84+,for fluid* handling.
95+,for ink jet fluids* (see (2) Note above)
104+,for means especially adapted to handle and/or process ink jet mediums. (see (3) Note above).
105,where specifics such as ink compositions and medium handling are recited especially adapting the medium to the ink jet. (see (3) Note above).

SEE OR SEARCH CLASS:

29, Metal Working,   particularly subclass 890.1 for making some types of ink jet devices.
73, Measuring and Testing,   appropriate subclasses for processes and apparatus for making a measurement or test, especially subclasses 861+ for liquid volume or rate of flow, subclasses 290+ for liquid level, and subclass 700 for fluid* pressure measurements.
101, Printing,   for contact projection of fluid* onto a medium* for informational marking (see (4) Note above).
106, Compositions: Coating or Plastic,   appropriate subclasses for inks to be used for producing characters by means of writing, printing, or marking*, especially subclass 20 for ink jet compositions; subclasses 31.13+, for ink with a nominal recitation of ink jet, especially subclass 31.51 with ink jet composition or process. (See (2) Note above).
118, Coating Apparatus,   appropriate subclasses for apparatus for applying a surface coating on a base, especially subclasses 663+ for controls and subclasses 300+ for projection or spray types. (See (4) Note above).
205, Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions,   especially subclass 75 for electroforming orifices.
210, Liquid Purification or Separation,   especially subclasses 348+ for filters. (See (2) Note above).
216, Etching a Substrate: Processes,   subclass 27 for methods of making a thermal ink jet device involving a step of chemical etching a substrate.
222, Dispensing,   appropriate subclasses for processes and apparatus for dispensing material. (See (4) Note above).
226, Advancing Material of Indeterminate Length,   appropriate subclasses for processes or apparatus for advancing material to or from a reel. (See (3) Note above).
239, Fluid Sprinkling, Spraying, and Diffusing,   (see (4) Note above).
242, Winding, Tensioning, or Guiding,   appropriate subclasses for winding or unwinding flexible material from holders. (See (3) Note above).
250, Radiant Energy,   appropriate subclasses for methods and apparatus for using, generating, controlling, or directing radiant energy, especially subclasses 200+ for photocells and their circuits.
251, Valves and Valve Actuation,   appropriate subclasses for regulating the flow of a fluid through a passage either by closing the passage or restricting it. (See (2) Note above).
257, Active Solid-State Devices (e.g., Transistors, Solid-State Diodes),   appropriate subclasses for active solid-state electronic devices such as diodes, transistors, thyristors, etc.
271, Sheet Feeding or Delivering,   for medium handling means (see (3) Note above).
324, Electricity: Measuring and Testing,   appropriate subclasses for measuring, testing, or sensing electric properties in general.
338, Electrical Resistors,   for resistor structure, appropriate subclasses for electrical resistors in general.
346, Recorders,   especially subclasses 134+ for mediums, subclass 140.1 for recording pens, and subclass 145 for housings.
356, Optics: Measuring and Testing,   appropriate subclasses for optical measuring and testing devices.
358, Facsimile and Static Presentation Processing,   subclasses 1.1 through 1.18for data processing for static presentation on fixed medium (e.g., printer), subclasses 500-540 for natural color facsimile, subclasses 400-498 for facsimile, and subclasses 296-304 for recording apparatus in facsimile.
374, Thermal Measuring and Testing,   especially subclasses 141+ for combined* with other devices.
400, Typewriting Machines,   especially subclasses 56+ for printing plane spacing, subclasses 283+ for carriage details, subclasses 578+ for media handling, and subclasses 691+ for housings.
401, Coating Implements With Material Supply,   subclasses 221+ for handheld pens. (See (4) Note above).
417, Pumps,   appropriate subclasses for devices for pumping fluids*. (See (2) Note above).
427, Coating Processes,   (see (4) Note above).
428, Stock Material or Miscellaneous Articles,   subclasses 411.1+ for nonstructural laminate materials.
438, Semiconductor Device Manufacturing: Process,   subclass 21 for methods of making an electrical device controlled printhead utilizing a semiconductor substrate.
439, Electrical Connectors,   appropriate subclasses for interconnection of electrical connectors.
523, Synthetic Resins or Natural Rubbers,   appropriate subclasses for ink compositions containing synthetic resins.
524, Synthetic Resins or Natural Rubbers,   appropriate subclasses for ink compositions containing synthetic resins.
700, Data Processing: Generic Control Systems or Specific Applications,   appropriate subclasses for a computer used as a controller.
D18, Printing and Office Machinery,   especially subclass 55 for housings and subclass 56 for ink cartridges.
  
[List of Patents for class 347 subclass 2]    2Combined:
 This subclass is indented under subclass 1.  Subject matter wherein the ink jet is combined* with an external means which will enable the ink jet to function as a specialized information marking* system. For example, the ink jet may function to mark* an object such as wire or a container. For example, a specialized system would be a copier or a facsimile device.
(1) Note. Nominal ink jet combined* with a significant external means is classified with such means.
  
[List of Patents for class 347 subclass 3]    3Reproduction (e.g., facsimile, copier, etc.):
 This subclass is indented under subclass 2.  Subject matter wherein the external means enables the ink jet to copy an image, and the combination functions as a copier, facsimile, or other reproduction device.

SEE OR SEARCH CLASS:

358, Facsimile and Static Presentation Processing,   subclasses 1.1 through 1.18for data processing for static presentation on fixed medium (e.g., for printer) (black and white) subclasses 500-540 (color) for facsimile circuits for an ink jet, and subclasses 296-304 for facsimile recording apparatus.
399, Electrophotography,   for electrostatic photocopying.
  
[List of Patents for class 347 subclass 4]    4With conveyed object:
 This subclass is indented under subclass 2.  Subject matter wherein the external means includes a conveyor for moving an object such as an envelope, container, article, etc.

SEE OR SEARCH CLASS:

198, Conveyors: Power-Driven,   appropriate subclasses for power-driven conveyors.
209, Classifying, Separating, and Assorting Solids,   subclass 3.3 for marking* items for classifying, separating, and assorting solids.
  
[List of Patents for class 347 subclass 5]    5Controller:
 This subclass is indented under subclass 1.  Subject matter wherein means or steps are provided to direct the operation of the ink jet or any of its component parts or functions.

SEE OR SEARCH CLASS:

358, Facsimile and Static Presentation Processing,   subclasses 1.1 through 1.18for static presentation processing (e.g., processing data for printer, etc.).
  
[List of Patents for class 347 subclass 6]    6Of fluid (e.g., ink flow rate, viscosity, etc.):
 This subclass is indented under subclass 5.  Subject matter in which the component or element under control* is the fluid* (e.g., ink) which is jetted onto the medium*.

SEE OR SEARCH CLASS:

73, Measuring and Testing,   appropriate subclasses for fluid measuring and testing, especially subclasses 861+ for volume or rate of flow measurement, subclasses 700+ for fluid pressure measurement, and subclass 290 for liquid level measurement.
  
[List of Patents for class 347 subclass 7]    7Fluid content (e.g., moisture or solvent content, ink refilling, liquid level):
 This subclass is indented under subclass 6.  Subject matter wherein the control* means contains means to alter the content of the fluid* (e.g., its moisture content or solvent content).
  
[List of Patents for class 347 subclass 8]    8Of spacing between fluid ejector and receiving medium:
 This subclass is indented under subclass 5.  Subject matter wherein the control* means contains means to alter the spacing between the means (ejector*) to jet fluid* onto the receiving medium* and the receiving medium* itself.

SEE OR SEARCH CLASS:

400, Typewriting Machines,   subclasses 55+ for adjustment of the printing plane in a typewriter.
  
[List of Patents for class 347 subclass 9]    9Of ejector:
 This subclass is indented under subclass 5.  Subject matter wherein the means under control* is the mechanism which projects the fluid* onto the medium*.

SEE OR SEARCH THIS CLASS, SUBCLASS:

20,for ejector* mechanism, per se.
  
[List of Patents for class 347 subclass 10]    10Drive waveform:
 This subclass is indented under subclass 9.  Subject matter wherein the control* is an electrical signal in the form of a specific waveform for operating the ejector*.
  
[List of Patents for class 347 subclass 11]    11Plural pulses:
 This subclass is indented under subclass 10.  Subject matter wherein the waveform contains a plural pulse sequence.
  
[List of Patents for class 347 subclass 12]    12Array:
 This subclass is indented under subclass 9.  Subject matter wherein the ejector* means contains a plurality of ejectors* generally termed an array.

SEE OR SEARCH THIS CLASS, SUBCLASS:

40+,for ejector* arrays, per se.
  
[List of Patents for class 347 subclass 13]    13Full-line array:
 This subclass is indented under subclass 12.  Subject matter wherein the plurality of ejectors* are fixedly arranged widthwise of the record medium* and generally termed full-line or page-width.

SEE OR SEARCH THIS CLASS, SUBCLASS:

42,for full-line ejector* arrays, per se.
  
[List of Patents for class 347 subclass 14]    14Responsive to condition:
 This subclass is indented under subclass 9.  Subject matter wherein the control* of the ejector* is in response to a specific condition such as temperature, pressure, type of medium*, etc.
  
[List of Patents for class 347 subclass 15]    15Creating plural tones:
 This subclass is indented under subclass 9.  Subject matter wherein the ejector* means is controlled to perform a graduated density of marking*.
(1) Note. Other terms used to describe this type of control* include gray scale, halftone, density control*, etc.

SEE OR SEARCH CLASS:

358, Facsimile and Static Presentation Processing,   subclasses 3.06 through 3.2for creating half tones in facsimile recording.
  
[List of Patents for class 347 subclass 16]    16Of medium:
 This subclass is indented under subclass 5.  Subject matter wherein the control* means includes means to control* some parameter such as speed, position, moisture content, etc., of the medium* on which fluid* is to be jetted.
  
[List of Patents for class 347 subclass 17]    17Of temperature or pressure of device or component thereof:
 This subclass is indented under subclass 5.  Subject matter wherein the control* means includes means to control* the temperature of the ink jet or a component thereof.
  
[List of Patents for class 347 subclass 18]    18With particular cooling means:
 This subclass is indented under subclass 17.  Subject matter wherein the control* means includes a means for cooling the ink jet (i.e., fan, heat sink, etc.).
  
[List of Patents for class 347 subclass 19]    19Measuring and testing (e.g., diagnostics):
 This subclass is indented under subclass 5.  Subject matter wherein means are provided for diagnosing, calibrating, testing, and measuring elements or parameters of, or affecting, the ink jet or its elements.
(1) Note. Control* systems, above, inherently include measuring and testing. The subject matter in this subclass concerns situations where the control* means of the above subclasses are not involved.

SEE OR SEARCH THIS CLASS, SUBCLASS:

78+,for correction systems for continuous ink jet.

SEE OR SEARCH CLASS:

73, Measuring and Testing,   appropriate subclasses for mechanical measuring and testing.
324, Electricity: Measuring and Testing,   appropriate subclasses for electrical measuring and testing.
356, Optics: Measuring and Testing,   appropriate subclasses for optical measuring and testing.
  
[List of Patents for class 347 subclass 20]    20Ejector mechanism (i.e., print head):
 This subclass is indented under subclass 1.  Subject matter wherein means are provided to eject or project a fluid* from a fluid* supply means to a receiving medium*.
(1) Note. This means generally includes a transducer* which converts the input signal into a force for aiding the ejection of the fluid*.

SEE OR SEARCH THIS CLASS, SUBCLASS:

9,for control* of the ejector*.
  
[List of Patents for class 347 subclass 21]    21With additional fluid:
 This subclass is indented under subclass 20.  Subject matter including means to provide another fluid* in addition to the marking* fluid* to assist the marking* process; for example, to direct the marking* fluid to a particular spot on the medium*.
  
[List of Patents for class 347 subclass 22]    22With cleaning or protector:
 This subclass is indented under subclass 20.  Subject matter wherein means are provided to keep the ejector* mechanism clean.
(1) Note. This may involve means to purge clogged nozzles or means to keep an ejector* element from becoming clogged or coated with dried ink, etc.

SEE OR SEARCH CLASS:

15, Brushing, Scrubbing, and General Cleaning,   appropriate subclasses for brushing, scrubbing, and general cleaning.
400, Typewriting Machines,   subclass 701 for typeface cleaning in a typewriter.
  
[List of Patents for class 347 subclass 23]    23Responsive to condition:
 This subclass is indented under subclass 22.  Subject matter wherein the cleaning means is responsive to a condition such as temperature, time, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

14,for ejectors* responsive to condition.
  
[List of Patents for class 347 subclass 24]    24For color:
 This subclass is indented under subclass 22.  Subject matter wherein the cleaning means is specifically adapted to handle plural color fluids*.
  
[List of Patents for class 347 subclass 25]    25Gas:
 This subclass is indented under subclass 22.  Subject matter wherein the cleaning means is a gas such as air.
  
[List of Patents for class 347 subclass 26]    26Heat:
 This subclass is indented under subclass 22.  Subject matter wherein the cleaning means removes clogs or debris by thermal action.
  
[List of Patents for class 347 subclass 27]    27Vibration:
 This subclass is indented under subclass 22.  Subject matter wherein the cleaning means removes clogs or debris by vibration.
  
[List of Patents for class 347 subclass 28]    28Solvent:
 This subclass is indented under subclass 22.  Subject matter wherein the cleaning means removes clogs or debris by the dissolving action of another fluid.
  
[List of Patents for class 347 subclass 29]    29Nozzle cap, cover, or protection:
 This subclass is indented under subclass 22.  Subject matter wherein the cleaning means is in the form of a cap, cover, or other protection which engages the ejector* face.
  
[List of Patents for class 347 subclass 30]    30Suction:
 This subclass is indented under subclass 29.  Subject matter wherein the cap, cover, or other protective means is provided with suction to remove fluid* from the ejector*.
  
[List of Patents for class 347 subclass 31]    31Absorber:
 This subclass is indented under subclass 29.  Subject matter wherein the cap, cover, or other protective means contains an absorber for containing or absorbing the fluid* used in the cleaning process.
  
[List of Patents for class 347 subclass 32]    32Movement:
 This subclass is indented under subclass 29.  Subject matter wherein means are provided to move the cap, cover, or other protection into and out of engagement with the ejector* means.
  
[List of Patents for class 347 subclass 33]    33Wiping:
 This subclass is indented under subclass 22.  Subject matter wherein a means is provided to wipe the ejector* mechanism to remove fluids.
  
[List of Patents for class 347 subclass 34]    34Mist or dust removal:
 This subclass is indented under subclass 22.  Subject matter wherein a means is provided to remove a mist or dust of ejected particles which would otherwise stain the record medium*.
  
[List of Patents for class 347 subclass 35]    35Purging without a cap:
 This subclass is indented under subclass 22.  Subject matter wherein the ejector* is cleaned by an ejection of fluid* in a non-marking* location.
(1) Note. A cap is not used during the ejection of fluid*.
  
[List of Patents for class 347 subclass 36]    36Waste storage:
 This subclass is indented under subclass 22.  Subject matter wherein a container is provided for the storage of the waste from cleaning.
  
[List of Patents for class 347 subclass 37]    37With means to scan fluid ejector relative to the receiving medium:
 This subclass is indented under subclass 20.  Subject matter including means to change the relative positions of the ejector* mechanism and the medium*.

SEE OR SEARCH CLASS:

400, Typewriting Machines,   subclasses 283+ for a carriage moving mechanism in a typewriter.
  
[List of Patents for class 347 subclass 38]    38With rotary motion:
 This subclass is indented under subclass 37.  Subject matter wherein the scan is a rotary motion.
  
[List of Patents for class 347 subclass 39]    39With oscillatory motion:
 This subclass is indented under subclass 37.  Subject matter wherein the scan is a rhythmic repetitive motion.
  
[List of Patents for class 347 subclass 40]    40Array of ejectors:
 This subclass is indented under subclass 20.  Subject matter wherein the ejector* mechanism includes a plurality of individual ejector* elements with a predetermined spacing extending along one or more directions.
  
[List of Patents for class 347 subclass 41]    41Interlace:
 This subclass is indented under subclass 40.  Subject matter wherein the ejector* elements are arrayed or driven so that drops forming adjacent dots or lines are not deposited during the same scan.
  
[List of Patents for class 347 subclass 42]    42Full-line type:
 This subclass is indented under subclass 40.  Subject matter wherein the plurality of ejector* elements are fixedly arranged to extend across the width of the recording medium*.
(1) Note. Another term used to describe full-line-type devices is page-width.

SEE OR SEARCH THIS CLASS, SUBCLASS:

13,for control* of a full-line head*.
  
[List of Patents for class 347 subclass 43]    43Color type:
 This subclass is indented under subclass 40.  Subject matter wherein the ejector* elements are structured or arranged to form a chromatic marking* on a receiving medium*.

SEE OR SEARCH CLASS:

346, Recorders,   subclasses 46 and 159 for color in recording devices.
358, Facsimile and Static Presentation Processing,   subclasses 500 through 540for natural color facsimile.
399, Electrophotography,   for color electrostatic photocopying.
  
[List of Patents for class 347 subclass 44]    44Discharge means:
 This subclass is indented under subclass 20.  Subject matter including means specific for the ejection of the fluid* from the ejector* mechanism.
  
[List of Patents for class 347 subclass 45]    45Surface treated:
 This subclass is indented under subclass 44.  Subject matter wherein the discharge means has a coated surface to enhance its operation.

SEE OR SEARCH CLASS:

118, Coating Apparatus,