US Patent Class 399
ELECTROPHOTOGRAPHY



Electronic
File
Wrappers

Electronic
Patent
Documents

Paper
Patent
Documents

Current as of: June, 1999
Click for Main Headings
Click DF for Definitions
Click for All Classes

Internet Version by PATENTEC © 1999       Terms of Use



Products
and
Services

  DF  CLASS NOTES
1  DF  COMBINED WITH DIVERSE SUBJECT MATTER
2  DF  .~ With diverse image formation
3  DF  .~.~ Electrostatic
4  DF  .~.~.~ Light (e.g., laser, LED, LCD)
5  DF  .~.~.~.~ Shared optics
6  DF  .~.~.~.~ Composite image
7  DF  .~.~.~.~ On or adjacent to platen
8  DF  REMOTE MONITORING
9  DF  DIAGNOSTICS
10  DF  .~ Log report
11  DF  .~ Service mode
12  DF  .~ Unit or part identification
13  DF  .~ Component present or mounted
14  DF  .~ Unacceptable copy coverage
15  DF  .~ By inspection of copied image
16  DF  .~ Document handling
17  DF  .~.~ Of original
18  DF  .~.~ Malfunction detection responsive
19  DF  .~.~.~ Job recovery
20  DF  .~.~.~ Purge
21  DF  .~.~ Jam
22  DF  .~.~.~ Misstrip of copy
23  DF  .~.~ Copy medium supply
24  DF  .~ Consumable
25  DF  .~.~ Process cartridge
26  DF  .~.~ Photoconductive member
27  DF  .~.~ Toner
28  DF  .~.~.~ Color
29  DF  .~.~.~ Deterioration or developability of toner
30  DF  .~.~.~ By concentration detector
31  DF  .~ Image forming component
32  DF  .~.~ Of exposure system (e.g., lamp, scanning, erase)
33  DF  .~ Fixing (e.g., over-temperature protection)
34  DF  .~ Cleaning
35  DF  .~.~ Waste toner container
36  DF  .~ Of motive power or driven unit
37  DF  .~ Power supply
38  DF  CONTROL OF ELECTROPHOTOGRAPHY PROCESS
39  DF  .~ Color balance
40  DF  .~.~ Of overlapped toner images
41  DF  .~.~ Single detector for plural toners
42  DF  .~ Artificial intelligence
43  DF  .~ Responsive to number of copies or passage of time
44  DF  .~ Having temperature or humidity detection
45  DF  .~ Responsive to copy media characteristic
46  DF  .~ Of plural processes
47  DF  .~.~ Having detection of exposure light
48  DF  .~.~ Having detection of photoconductor potential
49  DF  .~.~ Having detection of toner (e.g., patch)
50  DF  .~ Control of charging
51  DF  .~ Control of exposure
52  DF  .~.~ In response to light from original
53  DF  .~ Control of developing
54  DF  .~.~ Color selection
55  DF  .~.~ Bias control
56  DF  .~.~.~ In response to potential of latent image
57  DF  .~.~ Liquid
58  DF  .~.~ Concentration control
59  DF  .~.~.~ Setting of reference value
60  DF  .~.~.~ Detection of developed image
61  DF  .~.~.~ Detection of toner in developing unit
62  DF  .~.~.~.~ Concentration detection
63  DF  .~.~.~.~.~ Magnetic detector
64  DF  .~.~.~.~.~ Optical detector
65  DF  .~.~.~.~.~.~ Including sample holder
66  DF  .~ Control of transfer
67  DF  .~ Control of fixing
68  DF  .~.~ Conveyance of copy
69  DF  .~.~ Temperature control
70  DF  .~.~.~ Warmup or standby mode
71  DF  .~ Control of cleaning
72  DF  .~ Forming test image
73  DF  .~ Electrometer detail
74  DF  .~ Densitometer detail
75  DF  MACHINE OPERATION
76  DF  .~ Sequential control
77  DF  .~.~ Programmed
78  DF  .~.~ Reference signal (e.g., pulse train)
79  DF  .~ Accounting
80  DF  .~.~ User access
81  DF  .~ Operator interface (e.g., display control panel)
82  DF  .~ Job mode
83  DF  .~.~ Having memory
84  DF  .~.~ Key sheet
85  DF  .~.~ Having mode change
86  DF  .~.~.~ Auto copy size or magnification
87  DF  .~.~.~ Having priority interrupt
88  DF  .~ Having power supply
89  DF  .~.~ Supplying power to charger
90  DF  .~ Electrical connection
91  DF  INTERNAL MACHINE ENVIRONMENT
92  DF  .~ Forced air circulation
93  DF  .~.~ Having filtering (e.g., ozone removal)
94  DF  .~ Temperature
95  DF  .~.~ Platen
96  DF  .~.~ Photoconductive member
97  DF  .~ Humidity
98  DF  .~ Particle or contaminant control
99  DF  .~.~ Toner removal
100  DF  .~.~.~ Charging member (e.g., corona wire)
101  DF  .~.~.~ Transfer member
102  DF  .~.~ Seal
103  DF  .~.~.~ Developer seal
104  DF  .~.~.~.~ Magnetic
105  DF  .~.~.~.~ Elastic material
106  DF  .~.~.~.~ Toner cartridge
107  DF  HAVING PARTICULAR STRUCTURE
108  DF  .~ Portable
109  DF  .~ Remanufacturing
110  DF  .~ Modular or displaceable
111  DF  .~.~ Process cartridge unit
112  DF  .~.~.~ Color
113  DF  .~.~.~ Having subunit separation
114  DF  .~.~.~ Including cover
115  DF  .~.~ Charging unit
116  DF  .~.~ Photoconductive member
117  DF  .~.~.~ Drum mount
118  DF  .~.~ Optics
119  DF  .~.~ Developing unit
120  DF  .~.~.~ New and waste toner container
121  DF  .~.~ Transfer unit
122  DF  .~.~ Fixing unit
123  DF  .~.~ Cleaning unit
124  DF  .~.~ Paper path access
125  DF  .~.~ Clamshell type
126  DF  .~ Adjustment
127  DF  SUPPLEMENTAL ELECTROPHOTOGRAPHIC PROCESS
128  DF  .~ Exposure or charging (e.g., fatigue treatment)
129  DF  .~.~ Of residual toner
130  DF  IMAGE FORMATION
131  DF  .~ Photoelectrophoretic
132  DF  .~ Thermoplastic deformation
133  DF  .~ Having layer separation (e.g., manifold imaging)
134  DF  .~ Having photoconductive toner
135  DF  .~ Ion modulation (e.g., screen)
136  DF  .~ Simultaneously with charge transfer
137  DF  .~ Optical intermediate storage of original image
138  DF  .~ Operator adjusted density
139  DF  .~ Formation of master, photocopy-printer
140  DF  .~ To produce microimage
141  DF  .~.~ Film process head
142  DF  .~.~.~ Development
143  DF  .~ Selectively positive or negative
144  DF  .~ Reader-printer
145  DF  .~ Plural copies from same latent image
146  DF  .~ Contact exposure
147  DF  .~ Having overlayer
148  DF  .~ Combined or plural functions by single component
149  DF  .~.~ Development and cleaning
150  DF  .~.~.~ Simultaneously
151  DF  .~ Combined with scanning
152  DF  .~ Simultaneous exposure and development
153  DF  .~ Simultaneous charging and exposure
154  DF  .~ Having transfer of latent image
155  DF  .~ Having reciprocating imaging member
156  DF  .~ Having modification of latent image
157  DF  .~.~ To produce outline image
158  DF  .~ Display of developed image
159  DF  .~ Photoconductive member
160  DF  .~.~ Selection of image frame area
161  DF  .~.~ Renewable layer
162  DF  .~.~ Belt
163  DF  .~.~.~ Having nonuniform motion
164  DF  .~.~.~ Having backing support
165  DF  .~.~.~ Alignment or tensioning
166  DF  .~.~ Plate
167  DF  .~.~ Drive apparatus
168  DF  .~ Charging
169  DF  .~.~ Having selection of area to be charged
170  DF  .~.~ Corona
171  DF  .~.~.~ Having grid
172  DF  .~.~.~ Having case
173  DF  .~.~.~ Needle type
174  DF  .~.~ Contact
175  DF  .~.~.~ Brush
176  DF  .~.~.~ Roller
177  DF  .~ Exposure
178  DF  .~.~ Formation of color separation images
179  DF  .~.~.~ To plural photoconductive members
180  DF  .~.~.~ Having halftone screen
181  DF  .~.~ Halftone image
182  DF  .~.~ Having image editing
183  DF  .~.~.~ Selectable area
184  DF  .~.~.~.~ Color
185  DF  .~.~.~.~ Touch pad
186  DF  .~.~.~ Details of erase light
187  DF  .~.~.~ Edge or interframe erase
188  DF  .~.~.~.~ Copy blank leading edge
189  DF  .~.~.~.~ Cover position
190  DF  .~.~.~.~ Variable size
191  DF  .~.~.~.~ Using exposure light
192  DF  .~.~.~.~ Side edge lamps
193  DF  .~.~ Binding offset
194  DF  .~.~ Composite
195  DF  .~.~ Generating paper feed signal
196  DF  .~.~ Variable magnification
197  DF  .~.~.~ Having calculation
198  DF  .~.~.~ Exposure adjustment
199  DF  .~.~.~ Additional lens
200  DF  .~.~.~ Having scanning modification
201  DF  .~.~.~.~ Lens positioning
202  DF  .~.~.~.~ Mirror or scanning carriage positioning
203  DF  .~.~ Selective or convertible
204  DF  .~.~ Two-up copying
205  DF  .~.~ Having reference position (relative positioning)
206  DF  .~.~ Slit exposure
207  DF  .~.~.~ Diaphragm, shutter, shading board
208  DF  .~.~.~ Speed or acceleration control
209  DF  .~.~.~ Variable scanning (e.g., length)
210  DF  .~.~.~ Damping or braking
211  DF  .~.~.~ Scanning carriage parallel to original
212  DF  .~.~.~.~ Having half-rate carriage
213  DF  .~.~.~ Movable platen
214  DF  .~.~.~.~ Lock or clamp
215  DF  .~.~.~ By conveying original
216  DF  .~.~.~ By pivoting mirror
217  DF  .~.~ Full frame exposure (entire original at once)
218  DF  .~.~ Lens
219  DF  .~.~ Fiber optics
220  DF  .~.~ Light source
221  DF  .~.~.~ Modifier (e.g., reflector, filter)
222  DF  .~ Development
223  DF  .~.~ Plural diverse (e.g., color)
224  DF  .~.~.~ Adding toner
225  DF  .~.~.~ Single applicator
226  DF  .~.~.~ Plural applicators single position
227  DF  .~.~.~.~ Rotary type
228  DF  .~.~.~ Selectively active
229  DF  .~.~.~.~ By magnetic means
230  DF  .~.~.~.~ By diverting toner
231  DF  .~.~.~ Toner images overlapped
232  DF  .~.~.~.~ Opposite polarity
233  DF  .~.~.~ Liquid
234  DF  .~.~ Development prevention
235  DF  .~.~.~ Bias voltage
236  DF  .~.~ Applicator speed
237  DF  .~.~ Liquid development
238  DF  .~.~.~ Having dispensing
239  DF  .~.~.~ Application member (e.g., roller, belt)
240  DF  .~.~.~.~ Having applied bias
241  DF  .~.~.~ Having electrode
242  DF  .~.~.~.~ Sequential
243  DF  .~.~.~.~ Flexible
244  DF  .~.~.~.~ Screen
245  DF  .~.~.~.~ Self-cleaning
246  DF  .~.~.~ Sprayed
247  DF  .~.~.~.~ Fountain
248  DF  .~.~.~ Immersion
249  DF  .~.~.~ Removing excess developer (e.g., squeegee)
250  DF  .~.~.~ Liquid carrier condensation
251  DF  .~.~.~ Drying (e.g., warming, heating)
252  DF  .~.~ Dry development
253  DF  .~.~.~ Conditioning of toner
254  DF  .~.~.~ Mixing
255  DF  .~.~.~.~ Having new toner
256  DF  .~.~.~.~ Auger
257  DF  .~.~.~ Purging
258  DF  .~.~.~ Supplying new toner
259  DF  .~.~.~.~ Diverse (e.g., carrier and toner)
260  DF  .~.~.~.~ Metering (regulating, gate, discharge ports)
261  DF  .~.~.~.~ Vibration
262  DF  .~.~.~.~ Cartridge
263  DF  .~.~.~.~.~ Having internal rotary member
264  DF  .~.~.~ Removing excess developer
265  DF  .~.~.~ Application member
266  DF  .~.~.~.~ Having cloud-forming application
267  DF  .~.~.~.~ Magnetic brush
268  DF  .~.~.~.~.~ Having sheet guide
269  DF  .~.~.~.~.~ Plural
270  DF  .~.~.~.~.~ Having applied bias
271  DF  .~.~.~.~.~.~ Auxiliary electrode
272  DF  .~.~.~.~.~ Loading
273  DF  .~.~.~.~.~ Unloading (e.g., scraper)
274  DF  .~.~.~.~.~ Regulating (e.g., doctor)
275  DF  .~.~.~.~.~.~ Having stationary magnet
276  DF  .~.~.~.~.~ Sleeve
277  DF  .~.~.~.~.~ Magnet
278  DF  .~.~.~.~.~.~ Web or belt
279  DF  .~.~.~.~ Roller
280  DF  .~.~.~.~.~ Having concentric film
281  DF  .~.~.~.~.~ Loading
282  DF  .~.~.~.~.~.~ By magnetic brush
283  DF  .~.~.~.~.~ Unloading (e.g., scraper)
284  DF  .~.~.~.~.~ Regulating (e.g., doctor)
285  DF  .~.~.~.~.~ Having applied bias
286  DF  .~.~.~.~.~ Details
287  DF  .~.~.~.~ Fiber brush
288  DF  .~.~.~.~ Web or belt
289  DF  .~.~.~ Having field curtain
290  DF  .~.~.~ Powder cloud
291  DF  .~.~.~.~ Having electrode
292  DF  .~.~.~ Fluidized bed
293  DF  .~.~.~.~ Having electrode
294  DF  .~.~.~ Cascade
295  DF  .~.~.~.~ Having electrode
296  DF  .~ Treatment of developed image prior to transfer
297  DF  .~ Transfer
298  DF  .~.~ Color
299  DF  .~.~.~ From plural photoconductive members (e.g., drums)
300  DF  .~.~.~ From multiple positions
301  DF  .~.~.~ Registration
302  DF  .~.~.~ By intermediate transfer member
303  DF  .~.~.~ Copy medium carrier (e.g., drum or belt)
304  DF  .~.~.~.~ Having gripper
305  DF  .~.~.~.~.~ Vacuum or pneumatic
306  DF  .~.~ From plural photoconductive members (e.g., duplex)
307  DF  .~.~ Having simultaneous fixing
308  DF  .~.~ By intermediate transfer member
309  DF  .~.~.~ To produce duplex
310  DF  .~.~ Electrostatic
311  DF  .~.~.~ Corona
312  DF  .~.~.~.~ Having belt transporting copy
313  DF  .~.~.~ Roller or belt
314  DF  .~.~.~ Having applied bias
315  DF  .~.~.~ Having discharger (e.g., separation)
316  DF  .~.~.~ Having copy medium guide
317  DF  .~.~.~.~ Retractable
318  DF  .~.~ By pressure
319  DF  .~.~ Vibration
320  DF  .~ Fixing (e.g., fusing)
321  DF  .~.~ Color
322  DF  .~.~ Having copy-handling during fixing
323  DF  .~.~.~ Stripping
324  DF  .~.~ Offset prevention
325  DF  .~.~.~ Parting agent applicator
326  DF  .~.~.~.~ Cleaning member
327  DF  .~.~ Cleaning of fixing member
328  DF  .~.~ By heat and pressure
329  DF  .~.~.~ Continuous web
330  DF  .~.~.~ Heated roller
331  DF  .~.~.~.~ Pressure rollers
332  DF  .~.~.~.~.~ Cyclically (e.g., with movement of copy)
333  DF  .~.~.~.~ Composition or layers
334  DF  .~.~.~.~ Axial heat distribution
335  DF  .~.~ By heat
336  DF  .~.~.~ Radiant, infrared, or microwave
337  DF  .~.~.~.~ Coordinated with sheet movement
338  DF  .~.~.~ Contact
339  DF  .~.~ By pressure (without heat)
340  DF  .~.~ By solvent
341  DF  .~.~ Having treatment of image
342  DF  .~.~.~ Lamination
343  DF  CLEANING OF IMAGING SURFACE
344  DF  .~ Color
345  DF  .~ Retractable cleaning arrangement
346  DF  .~ Including lubricant
347  DF  .~ Abrasion or film removal
348  DF  .~ Removing liquid developer
349  DF  .~ Plural diverse
350  DF  .~ Blade
351  DF  .~.~ Having holder
352  DF  .~ Web
353  DF  .~ Fibrous brush
354  DF  .~.~ Having applied voltage
355  DF  .~.~ Having forced air (e.g., vacuum)
356  DF  .~ Magnetic
357  DF  .~ Roller
358  DF  .~ Having handling of removed material
359  DF  .~.~ Recycled to developing unit
360  DF  .~.~ Having storage
361  DF  DOCUMENT HANDLING
362  DF  .~ Book copying
363  DF  .~ Original and copy
364  DF  .~.~ Duplex
365  DF  .~ Original
366  DF  .~.~ Unauthorized copy prevention
367  DF  .~.~ Automatic document feeder
368  DF  .~.~.~ Plural originals simultaneously
369  DF  .~.~.~ Plural document holders
370  DF  .~.~.~ Having size detection
371  DF  .~.~.~ Having position detection
372  DF  .~.~.~ Registration
373  DF  .~.~.~ Recirculating
374  DF  .~.~.~ Copying both sides of original
375  DF  .~.~.~ For continuous or fanfold paper
376  DF  .~.~ Having detection of size
377  DF  .~.~ Holder
378  DF  .~.~.~ Film (e.g., transparency)
379  DF  .~.~.~ Platen
380  DF  .~.~.~.~ Having cover
381  DF  .~ Copy
382  DF  .~.~ Interleaving (e.g., cover or partitioning sheet)
383  DF  .~.~ Plural copies (from same original)
384  DF  .~.~ Continuous (e.g., roll, fanfold)
385  DF  .~.~.~ Having cutting
386  DF  .~.~.~.~ In response to detection of original
387  DF  .~.~.~.~ Length adjustment
388  DF  .~.~ Feeding to transfer position
389  DF  .~.~.~ Having detection of size or type
390  DF  .~.~.~ Having treatment of copy medium
391  DF  .~.~.~ Plural copy medium sources
392  DF  .~.~.~.~ Manual feed
393  DF  .~.~.~ Copy medium input tray
394  DF  .~.~.~ In registration with image
395  DF  .~.~.~.~ Skew correction
396  DF  .~.~.~.~ Speed control of conveyance
397  DF  .~.~ Delivering from transfer position
398  DF  .~.~.~ Stripping from photoconductive member
399  DF  .~.~.~.~ Claw
400  DF  .~.~.~ To fixing (e.g., fuser)
401  DF  .~.~.~ Re-fed for additional image
402  DF  .~.~.~.~ Having intermediate storage
403  DF  .~.~.~ Having collating
404  DF  .~.~.~ Having offset stacking
405  DF  .~.~.~ Discharge of copy (e.g., exit tray)
406  DF  .~.~.~ Curl correction
407  DF  .~.~.~ Post-processing
408  DF  .~.~.~.~ Having binding
409  DF  .~.~.~.~.~ By toner
410  DF  .~.~.~.~.~ By staple
411  DF  MISCELLANEOUS