Manual of U.S. Patent Classification
as of June 30, 2000

Class
347
INCREMENTAL PRINTING OF SYMBOLIC INFORMATION

Class definitions may be accessed by clicking on the class title, above.
Subclass definitions may be accessed by clicking on the subclass number, below.

Patents classified in a subclass may be accessed by clicking on the " " icon following the subclass number, below.

( please note that links to definitions and classified patents may not be available for some classes and subclasses )

For search strategies, please refer to the Classification Index Explanation of Data web page.

Subclass		Title
ClassTitle		===> INCREMENTAL PRINTING OF SYMBOLIC INFORMATION
1		INK JET
2		. Combined
3		. . Reproduction (e.g., facsimile, copier, etc.)
4		. . With conveyed object
5		. Controller
6		. . Of fluid (e.g., ink flow rate, viscosity, etc.)
7		. . . Fluid content (e.g., moisture or solvent content, ink refilling, liquid level)
8		. . Of spacing between fluid ejector and receiving medium
9		. . Of ejector
10		. . . Drive waveform
11		. . . . Plural pulses
12		. . . Array
13		. . . . Full-line array
14		. . . Responsive to condition
15		. . . Creating plural tones
16		. . Of medium
17		. . Of temperature or pressure of device or component thereof
18		. . . With particular cooling means
19		. . Measuring and testing (e.g., diagnostics)
20		. Ejector mechanism (i.e., print head)
21		. . With additional fluid
22		. . With cleaning or protector
23		. . . Responsive to condition
24		. . . For color
25		. . . Gas
26		. . . Heat
27		. . . Vibration
28		. . . Solvent
29		. . . Nozzle cap, cover, or protection
30		. . . . Suction
31		. . . . Absorber
32		. . . . Movement
33		. . . Wiping
34		. . . Mist or dust removal
35		. . . Purging without a cap
36		. . . Waste storage
37		. . With means to scan fluid ejector relative to the receiving medium
38		. . . With rotary motion
39		. . . With oscillatory motion
40		. . Array of ejectors
41		. . . Interlace
42		. . . Full-line type
43		. . . Color type
44		. . Discharge means
45		. . . Surface treated
46		. . . Free surface
47		. . . Nozzles
48		. . With plural transducers
49		. . Modular
50		. . Electrical connector means
51		. . Optical energy acting on fluid
52		. . Electron beam acting on fluid
53		. . Magnetic
54		. . Drop-on-demand
55		. . . With electric field ejection (applied to fluid)
56		. . . With thermal force ejection
57		. . . . Drive signal application
58		. . . . . Wiring
59		. . . . . . Integrated
60		. . . . Preheat
61		. . . . Thermal force generators
62		. . . . . Resistor specifics
63		. . . . Composite ejector
64		. . . . . Protective
65		. . . . . Flow path
66		. . . . Head separate from fluid supply
67		. . . . With additional feature
68		. . . With piezoelectric force ejection
69		. . . . Shear mode
70		. . . . With vibratory plate
71		. . . . Layers, plates
72		. . . . . Plural piezoelectric laminate
73		. . Continuous stream (includes dispersion)
74		. . . With individual drop generation and/or control
75		. . . . Drop generation means
76		. . . . Drop charge means
77		. . . . Drop deflection means
78		. . . . Drop correction
79		. . . . . Charge compensation
80		. . . . . Synchronization of drop separation and charge time
81		. . . . . Drop sensors
82		. . . With stream deflection
83		. . . With aerosol formation
84		. Fluid or fluid source handling means
85		. . Fluid supply system
86		. . . Cartridge
87		. . . . With integral ejector
88		. . . For hot-melt fluid (e.g., phase-change)
89		. . . With recirculation
90		. . . . Collector`s or catcher`s specifics
91		. . . . With carrier
92		. . With means to remove and/or accommodate bubbles in the fluid
93		. . With fluid treatment (e.g., filtering)
94		. . With means to reduce vibration in the fluid (damping)
95		. . Fluid (e.g., fluid specifics)
96		. . . Reactive
97		. . . Gas
98		. . . Colorless
99		. . . Hot-melt (e.g., phase-change)
100		. . . Ink
101		. Medium and processing means
102		. . Drying or curing
103		. . Transfer of fluid to another record medium
104		. . Physical handling
105		. . Receiving medium
106		. . . Physical characteristics
107		. . With unique pattern
108		. Housing
109		. . Hand-held
111		ELECTRIC MARKING APPARATUS OR PROCESSES
112		. Electrostatic
113		. . Thermoplastic
114		. . Electrothermographic
115		. . Multicolor
116		. . . Registration
117		. . . Plural heads
118		. . . . Using light as exposure means
119		. . . Single head using light as exposure means
120		. . By information carrying flow of invisible charged particles
121		. . . Electron beam generator with air tight envelope
122		. . . . Including latent image generation using luminescent material
123		. . . Specific ionographic head
124		. . . . Including simultaneous development
125		. . . . Fluid assisted charged particle flow or generation
126		. . . . . Modified or specific fluid (e.g., heated, dehumidified, specified gas)
127		. . . . Laminated head including charged particle generation layer
128		. . . Including driving circuitry
129		. . Photo scanning
130		. . . Light emitting diodes
131		. . . Dot density or dot size control (e.g., halftone)
132		. . . Beam generator driving means
133		. . . . Having feedback or environmental control
134		. . . Optical elements interposed between record receiver and beam generator
135		. . . . Light intensity modulation means
136		. . . . . Shutter device
137		. . . . Lens
138		. . . Housing or mounting
139		. . . Record receiver or conveyor means therefor
140		. . . Developer or charger mechanism
141		. . Specific electrostatic head
142		. . . Signal switching
143		. . . . Amplitude modulation
144		. . . . Time based modulation (e.g., pulse width, duty cycle, rise time)
145		. . . . Block driving
146		. . . Character wheel
147		. . . Specific head tip
148		. . . Printed circuit or wiring
149		. . . Spacing or pressure
150		. . . Composition
151		. . . Using recording head to selectively charge toner
152		. . Housing or mounting
153		. . With medium for receiving an image or feeding means therefor
154		. . . Endless web or belt for the latent image
155		. . . Pre or post treatment
156		. . . . Fixing or fusing
157		. . . Including cutter means
158		. . . Including toner delivery means
159		. By electrical discharge (e.g., spark)
160		. . Rotary head support
161		. . Electrical discharge burning (e.g., oxidation or electroerosion)
162		. . Including driving circuitry
163		. By electrochemical
164		. . With record receiver or handling means therefor
165		. . . Including treating means
166		. . Specific head
167		. . . Including motor for driving head
168		. . . Including driving circuitry
169		. . . Helix drum
170		. . Housing or mounting
171		THERMAL MARKING APPARATUS OR PROCESSES
172		. Multicolor
173		. . Single pass
174		. . Single-head type (e.g., multipass)
175		. . . Having multilayers colored transfer material
176		. . . Having single layer colored transfer material
177		. . . . Including sensor means
178		. . . . . For detecting color
179		. With correction or erasing means
180		. Block driving
181		. . Simultaneously
182		. . Sequentially
183		. Gradational recording
184		. . Look up table
185		. Preheating
186		. . Recording means
187		. . Transfer material or recording medium
188		. Density control
189		. . In accordance with ambient temperature
190		. . By number of heated recording elements
191		. . In accordance with thermal output characteristic of the recording means
192		. . By variation in power supply
193		. . By transfer material or record receiver
194		. . In accordance with temperature of the recording means
195		. . By history of recording elements
196		. . . Using pulse width modulation
197		. Recording means engaging or holding means
198		. . Adjustable
199		. Electroconductive recording means
200		. Specific resistance recording element type
201		. . Edge or end face type
202		. . Glazed layer
203		. . Protective layer
204		. . Heat resistance layer
205		. . Head substrate
206		. . Heating resistive elements
207		. . Having auxiliary means for conducting heat
208		. . Specific conductor means (e.g., electrode, conducting pattern, etc.)
209		. . . With means for driving or supplying current to the resistive heating elements
210		. . . . Including switching means
211		. Having driving circuitry for recording means
212		. Pre or post image recording treatment
213		. Having an intermediate medium for transferring ink
214		. Ink cassette or cartridge
215		. Record receiver and transfer medium feeding or driving means
216		. . Including separating means
217		. With transfer medium or driving means therefor
218		. Record receiver driving means
219		. . Including tensioning means
220		. Platen or engaging means therefor
221		. With recording medium
222		. Housing or mounting
223		. Including cooling device
224		LIGHT OR BEAM MARKING APPARATUS OR PROCESSES
225		. Scan of light
226		. . Cathode ray device
227		. . . With record receiver in an evacuated enclosure
228		. . . Having developing means
229		. . . Synchronization of light with record receiver
230		. . . Having optical means interposed between the screen of the cathode ray device and the record receiver
231		. . . Having deflecting means
232		. . Multicolor
233		. . Plural beam scan
234		. . . Synchronization of light with medium
235		. . . Scan synchronization (e.g., start-of-scan, end-of-scan)
236		. . . Feed back of light for intensity control
237		. . . Driving circuitry
238		. . . Specific light source (e.g., LEDs assembly)
239		. . . Specific light modulator
240		. . . Tone marking
241		. . . Specific optical structure
242		. . . . Having mounting or supporting means
243		. . . . Including deflector
244		. . . . Specific lens
245		. . . Housing or mounting
246		. . Feedback of light for intensity control
247		. . Driving circuitry
248		. . Synchronization of light with medium
249		. . . By clock deviation
250		. . Scan synchronization (e.g., start-of-scan, end-of-scan)
251		. . Tone marking
252		. . . By adjusting pulse width of light beam
253		. . . By varying intensity of light beam
254		. . . By varying dotting density
255		. . Specific light modulator
256		. . Specific optical structure
257		. . . Having mounting or supporting means
258		. . . Having lens
259		. . . . Including deflector
260		. . . Having deflector
261		. . . . Polygon
262		. . With record receiver or handling means therefor
263		. . Housing or mounting
264		. With record receiver or handling means therefor
110		MARKING DEVICES
		******************************
		CROSS-REFERENCE ART COLLECTION
		******************************
900		DATA PROCESSING FOR ELECTROSTATIC RECORDING

Information Products Division -- Contacts

Questions regarding this report should be directed to:

U.S. Patent and Trademark Office
Information Products Division
PK3- Suite 441
Washington, DC 20231

tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov

---

Last Modified: 6 October 2000