| Class Number |
Class Name |
No. of Patents |
| 399/343 |
Cleaning of imaging surface |
202 |
| 399/347 |
Abrasion or film removal |
43 |
| 399/350 |
Blade |
406 |
| 399/351 |
Having holder |
134 |
| 399/344 |
Color |
23 |
| 399/353 |
Fibrous brush |
169 |
| 399/354 |
Having applied voltage |
114 |
| 399/355 |
Having forced air (e.g., vacuum) |
39 |
| 399/358 |
Having handling of removed material |
243 |
| 399/360 |
Having storage |
148 |
| 399/359 |
Recycled to developing unit |
179 |
| 399/346 |
Including lubricant |
110 |
| 399/356 |
Magnetic |
81 |
| 399/349 |
Plural diverse |
128 |
| 399/348 |
Removing liquid developer |
79 |
| 399/345 |
Retractable cleaning arrangement |
85 |
| 399/357 |
Roller |
107 |
| 399/352 |
Web |
48 |
| 399/1 |
Combined with diverse subject matter |
231 |
| 399/2 |
With diverse image formation |
98 |
| 399/3 |
Electrostatic |
22 |
| 399/4 |
Light (e.g., laser, led, lcd) |
59 |
| 399/6 |
Composite image |
66 |
| 399/7 |
On or adjacent to platen |
16 |
| 399/5 |
Shared optics |
12 |
| 399/38 |
Control of electrophotography process |
150 |
| 399/42 |
Artificial intelligence |
59 |
| 399/39 |
Color balance |
107 |
| 399/40 |
Of overlapped toner images |
53 |
| 399/41 |
Single detector for plural toners |
23 |
| 399/50 |
Control of charging |
336 |
| 399/71 |
Control of cleaning |
158 |
| 399/53 |
Control of developing |
240 |
| 399/55 |
Bias control |
291 |
| 399/56 |
In response to potential of latent image |
55 |
| 399/54 |
Color selection |
65 |
| 399/58 |
Concentration control |
165 |
| 399/60 |
Detection of developed image |
111 |
| 399/61 |
Detection of toner in developing unit |
136 |
| 399/62 |
Concentration detection |
110 |
| 399/63 |
Magnetic detector |
76 |
| 399/64 |
Optical detector |
80 |
| 399/65 |
Including sample holder |
25 |
| 399/59 |
Setting of reference value |
80 |
| 399/57 |
Liquid |
122 |
| 399/51 |
Control of exposure |
209 |
| 399/52 |
In response to light from original |
57 |
| 399/67 |
Control of fixing |
295 |
| 399/68 |
Conveyance of copy |
183 |
| 399/69 |
Temperature control |
642 |
| 399/70 |
Warmup or standby mode |
243 |
| 399/66 |
Control of transfer |
560 |
| 399/74 |
Densitometer detail |
122 |
| 399/73 |
Electrometer detail |
41 |
| 399/72 |
Forming test image |
206 |
| 399/44 |
Having temperature or humidity detection |
334 |
| 399/46 |
Of plural processes |
192 |
| 399/47 |
Having detection of exposure light |
41 |
| 399/48 |
Having detection of photoconductor potential |
111 |
| 399/49 |
Having detection of toner (e.g., patch) |
599 |
| 399/45 |
Responsive to copy media characteristic |
475 |
| 399/43 |
Responsive to number of copies or passage of time |
248 |
| 399/9 |
Diagnostics |
322 |
| 399/15 |
By inspection of copied image |
115 |
| 399/34 |
Cleaning |
35 |
| 399/35 |
Waste toner container |
63 |
| 399/13 |
Component present or mounted |
195 |
| 399/24 |
Consumable |
260 |
| 399/26 |
Photoconductive member |
107 |
| 399/25 |
Process cartridge |
163 |
| 399/27 |
Toner |
597 |
| 399/30 |
By concentration detector |
154 |
| 399/28 |
Color |
57 |
| 399/29 |
Deterioration or developability of toner |
95 |
| 399/16 |
Document handling |
210 |
| 399/23 |
Copy medium supply |
110 |
| 399/21 |
Jam |
251 |
| 399/22 |
Misstrip of copy |
44 |
| 399/18 |
Malfunction detection responsive |
173 |
| 399/19 |
Job recovery |
81 |
| 399/20 |
Purge |
42 |
| 399/17 |
Of original |
72 |
| 399/33 |
Fixing (e.g., over-temperature protection) |
156 |
| 399/31 |
Image forming component |
94 |
| 399/32 |
Of exposure system (e.g., lamp, scanning, erase) |
69 |
| 399/10 |
Log report |
83 |
| 399/36 |
Of motive power or driven unit |
32 |
| 399/37 |
Power supply |
83 |
| 399/11 |
Service mode |
101 |
| 399/14 |
Unacceptable copy coverage |
55 |
| 399/12 |
Unit or part identification |
411 |
| 399/361 |
Document handling |
222 |
| 399/362 |
Book copying |
58 |
| 399/381 |
Copy |
151 |
| 399/384 |
Continuous (e.g., roll, fanfold) |
180 |
| 399/385 |
Having cutting |
99 |
| 399/386 |
In response to detection of original |
15 |
| 399/387 |
Length adjustment |
16 |
| 399/397 |
Delivering from transfer position |
138 |
| 399/406 |
Curl correction |
143 |
| 399/405 |
Discharge of copy (e.g., exit tray) |
286 |
| 399/403 |
Having collating |
161 |
| 399/404 |
Having offset stacking |
47 |
| 399/407 |
Post-processing |
225 |
| 399/408 |
Having binding |
115 |
| 399/410 |
By staple |
228 |
| 399/409 |
By toner |
8 |
| 399/401 |
Re-fed for additional image |
302 |
| 399/402 |
Having intermediate storage |
107 |
| 399/398 |
Stripping from photoconductive member |
109 |
| 399/399 |
Claw |
47 |
| 399/400 |
To fixing (e.g., fuser) |
124 |
| 399/388 |
Feeding to transfer position |
243 |
| 399/393 |
Copy medium input tray |
155 |
| 399/389 |
Having detection of size or type |
152 |
| 399/390 |
Having treatment of copy medium |
103 |
| 399/394 |
In registration with image |
163 |
| 399/395 |
Skew correction |
108 |
| 399/396 |
Speed control of conveyance |
135 |
| 399/391 |
Plural copy medium sources |
122 |
| 399/392 |
Manual feed |
61 |
| 399/382 |
Interleaving (e.g., cover or partitioning sheet) |
79 |
| 399/383 |
Plural copies (from same original) |
18 |
| 399/363 |
Original and copy |
44 |
| 399/364 |
Duplex |
283 |
| 399/365 |
Original |
62 |
| 399/367 |
Automatic document feeder |
359 |
| 399/374 |
Copying both sides of original |
193 |
| 399/375 |
For continuous or fanfold paper |
27 |
| 399/371 |
Having position detection |
90 |
| 399/370 |
Having size detection |
158 |
| 399/369 |
Plural document holders |
33 |
| 399/368 |
Plural originals simultaneously |
35 |
| 399/373 |
Recirculating |
82 |
| 399/372 |
Registration |
93 |
| 399/376 |
Having detection of size |
96 |
| 399/377 |
Holder |
139 |
| 399/378 |
Film (e.g., transparency) |
20 |
| 399/379 |
Platen |
160 |
| 399/380 |
Having cover |
114 |
| 399/366 |
Unauthorized copy prevention |
163 |
| 399/107 |
Having particular structure |
323 |
| 399/126 |
Adjustment |
48 |
| 399/110 |
Modular or displaceable |
387 |
| 399/115 |
Charging unit |
83 |
| 399/125 |
Clamshell type |
129 |
| 399/123 |
Cleaning unit |
102 |
| 399/119 |
Developing unit |
504 |
| 399/120 |
New and waste toner container |
257 |
| 399/122 |
Fixing unit |
183 |
| 399/118 |
Optics |
86 |
| 399/124 |
Paper path access |
286 |
| 399/116 |
Photoconductive member |
261 |
| 399/117 |
Drum mount |
187 |
| 399/111 |
Process cartridge unit |
949 |
| 399/112 |
Color |
102 |
| 399/113 |
Having subunit separation |
289 |
| 399/114 |
Including cover |
127 |
| 399/121 |
Transfer unit |
167 |
| 399/108 |
Portable |
41 |
| 399/109 |
Remanufacturing |
187 |
| 399/130 |
Image formation |
196 |
| 399/168 |
Charging |
217 |
| 399/174 |
Contact |
227 |
| 399/175 |
Brush |
147 |
| 399/176 |
Roller |
364 |
| 399/170 |
Corona |
189 |
| 399/172 |
Having case |
38 |
| 399/171 |
Having grid |
137 |
| 399/173 |
Needle type |
33 |
| 399/169 |
Having selection of area to be charged |
42 |
| 399/148 |
Combined or plural functions by single component |
48 |
| 399/149 |
Development and cleaning |
177 |
| 399/150 |
Simultaneously |
102 |
| 399/151 |
Combined with scanning |
77 |
| 399/146 |
Contact exposure |
7 |
| 399/222 |
Development |
150 |
| 399/236 |
Applicator speed |
55 |
| 399/234 |
Development prevention |
35 |
| 399/235 |
Bias voltage |
42 |
| 399/252 |
Dry development |
191 |
| 399/265 |
Application member |
88 |
| 399/287 |
Fiber brush |
13 |
| 399/266 |
Having cloud-forming application |
147 |
| 399/267 |
Magnetic brush |
324 |
| 399/270 |
Having applied bias |
196 |
| 399/271 |
Auxiliary electrode |
35 |
| 399/268 |
Having sheet guide |
15 |
| 399/272 |
Loading |
170 |
| 399/277 |
Magnet |
244 |
| 399/278 |
Web or belt |
12 |
| 399/269 |
Plural |
100 |
| 399/274 |
Regulating (e.g., doctor) |
273 |
| 399/275 |
Having stationary magnet |
108 |
| 399/276 |
Sleeve |
271 |
| 399/273 |
Unloading (e.g., scraper) |
85 |
| 399/279 |
Roller |
224 |
| 399/286 |
Details |
193 |
| 399/285 |
Having applied bias |
239 |
| 399/280 |
Having concentric film |
20 |
| 399/281 |
Loading |
195 |
| 399/282 |
By magnetic brush |
41 |
| 399/284 |
Regulating (e.g., doctor) |
349 |
| 399/283 |
Unloading (e.g., scraper) |
73 |
| 399/288 |
Web or belt |
38 |
| 399/294 |
Cascade |
10 |
| 399/295 |
Having electrode |
5 |
| 399/253 |
Conditioning of toner |
78 |
| 399/292 |
Fluidized bed |
26 |
| 399/293 |
Having electrode |
9 |
| 399/289 |
Having field curtain |
25 |
| 399/254 |
Mixing |
275 |
| 399/256 |
Auger |
202 |
| 399/255 |
Having new toner |
49 |
| 399/290 |
Powder cloud |
31 |
| 399/291 |
Having electrode |
69 |
| 399/257 |
Purging |
98 |
| 399/264 |
Removing excess developer |
93 |
| 399/258 |
Supplying new toner |
509 |
| 399/262 |
Cartridge |
620 |
| 399/263 |
Having internal rotary member |
176 |
| 399/259 |
Diverse (e.g., carrier and toner) |
47 |
| 399/260 |
Metering (regulating, gate, discharge ports) |
272 |
| 399/261 |
Vibration |
41 |
| 399/237 |
Liquid development |
323 |
| 399/239 |
Application member (e.g., roller, belt) |
137 |
| 399/240 |
Having applied bias |
84 |
| 399/251 |
Drying (e.g., warming, heating) |
63 |
| 399/238 |
Having dispensing |
98 |
| 399/241 |
Having electrode |
62 |
| 399/243 |
Flexible |
7 |
| 399/244 |
Screen |
11 |
| 399/245 |
Self-cleaning |
20 |
| 399/242 |
Sequential |
15 |
| 399/248 |
Immersion |
18 |
| 399/250 |
Liquid carrier condensation |
47 |
| 399/249 |
Removing excess developer (e.g., squeegee) |
244 |
| 399/246 |
Sprayed |
38 |
| 399/247 |
Fountain |
27 |
| 399/223 |
Plural diverse (e.g., color) |
316 |
| 399/224 |
Adding toner |
39 |
| 399/233 |
Liquid |
85 |
| 399/226 |
Plural applicators single position |
74 |
| 399/227 |
Rotary type |
257 |
| 399/228 |
Selectively active |
126 |
| 399/230 |
By diverting toner |
13 |
| 399/229 |
By magnetic means |
20 |
| 399/225 |
Single applicator |
25 |
| 399/231 |
Toner images overlapped |
88 |
| 399/232 |
Opposite polarity |
58 |
| 399/158 |
Display of developed image |
27 |
| 399/177 |
Exposure |
53 |
| 399/193 |
Binding offset |
22 |
| 399/194 |
Composite |
62 |
| 399/219 |
Fiber optics |
41 |
| 399/178 |
Formation of color separation images |
160 |
| 399/180 |
Having halftone screen |
32 |
| 399/179 |
To plural photoconductive members |
33 |
| 399/217 |
Full frame exposure (entire original at once) |
11 |
| 399/195 |
Generating paper feed signal |
32 |
| 399/181 |
Halftone image |
55 |
| 399/182 |
Having image editing |
43 |
| 399/186 |
Details of erase light |
41 |
| 399/187 |
Edge or interframe erase |
75 |
| 399/188 |
Copy blank leading edge |
7 |
| 399/189 |
Cover position |
12 |
| 399/192 |
Side edge lamps |
7 |
| 399/191 |
Using exposure light |
16 |
| 399/190 |
Variable size |
23 |
| 399/183 |
Selectable area |
71 |
| 399/184 |
Color |
79 |
| 399/185 |
Touch pad |
20 |
| 399/205 |
Having reference position (relative positioning) |
41 |
| 399/218 |
Lens |
51 |
| 399/220 |
Light source |
121 |
| 399/221 |
Modifier (e.g., reflector, filter) |
109 |
| 399/203 |
Selective or convertible |
64 |
| 399/206 |
Slit exposure |
104 |
| 399/215 |
By conveying original |
20 |
| 399/216 |
By pivoting mirror |
33 |
| 399/210 |
Damping or braking |
34 |
| 399/207 |
Diaphragm, shutter, shading board |
45 |
| 399/213 |
Movable platen |
72 |
| 399/214 |
Lock or clamp |
11 |
| 399/211 |
Scanning carriage parallel to original |
108 |
| 399/212 |
Having half-rate carriage |
37 |
| 399/208 |
Speed or acceleration control |
75 |
| 399/209 |
Variable scanning (e.g., length) |
49 |
| 399/204 |
Two-up copying |
27 |
| 399/196 |
Variable magnification |
106 |
| 399/199 |
Additional lens |
15 |
| 399/198 |
Exposure adjustment |
22 |
| 399/197 |
Having calculation |
39 |
| 399/200 |
Having scanning modification |
71 |
| 399/201 |
Lens positioning |
43 |
| 399/202 |
Mirror or scanning carriage positioning |
51 |
| 399/320 |
Fixing (e.g., fusing) |
215 |
| 399/328 |
By heat and pressure |
731 |
| 399/329 |
Continuous web |
501 |
| 399/330 |
Heated roller |
477 |
| 399/334 |
Axial heat distribution |
108 |
| 399/333 |
Composition or layers |
424 |
| 399/331 |
Pressure rollers |
206 |
| 399/332 |
Cyclically (e.g., with movement of copy) |
38 |
| 399/335 |
By heat |
230 |
| 399/338 |
Contact |
45 |
| 399/336 |
Radiant, infrared, or microwave |
130 |
| 399/337 |
Coordinated with sheet movement |
24 |
| 399/339 |
By pressure (without heat) |
86 |
| 399/340 |
By solvent |
21 |
| 399/327 |
Cleaning of fixing member |
174 |
| 399/321 |
Color |
40 |
| 399/322 |
Having copy-handling during fixing |
163 |
| 399/323 |
Stripping |
151 |
| 399/341 |
Having treatment of image |
146 |
| 399/342 |
Lamination |
32 |
| 399/324 |
Offset prevention |
161 |
| 399/325 |
Parting agent applicator |
239 |
| 399/326 |
Cleaning member |
52 |
| 399/139 |
Formation of master, photocopy-printer |
40 |
| 399/133 |
Having layer separation (e.g., manifold imaging) |
8 |
| 399/156 |
Having modification of latent image |
37 |
| 399/157 |
To produce outline image |
11 |
| 399/147 |
Having overlayer |
26 |
| 399/134 |
Having photoconductive toner |
8 |
| 399/155 |
Having reciprocating imaging member |
22 |
| 399/154 |
Having transfer of latent image |
33 |
| 399/135 |
Ion modulation (e.g., screen) |
66 |
| 399/138 |
Operator adjusted density |
96 |
| 399/137 |
Optical intermediate storage of original image |
21 |
| 399/159 |
Photoconductive member |
840 |
| 399/162 |
Belt |
199 |
| 399/165 |
Alignment or tensioning |
164 |
| 399/164 |
Having backing support |
89 |
| 399/163 |
Having nonuniform motion |
9 |
| 399/167 |
Drive apparatus |
477 |
| 399/166 |
Plate |
20 |
| 399/161 |
Renewable layer |
42 |
| 399/160 |
Selection of image frame area |
44 |
| 399/131 |
Photoelectrophoretic |
46 |
| 399/145 |
Plural copies from same latent image |
45 |
| 399/144 |
Reader-printer |
52 |
| 399/143 |
Selectively positive or negative |
44 |
| 399/153 |
Simultaneous charging and exposure |
37 |
| 399/152 |
Simultaneous exposure and development |
22 |
| 399/136 |
Simultaneously with charge transfer |
14 |
| 399/132 |
Thermoplastic deformation |
14 |
| 399/140 |
To produce microimage |
35 |
| 399/141 |
Film process head |
13 |
| 399/142 |
Development |
17 |
| 399/297 |
Transfer |
299 |
| 399/308 |
By intermediate transfer member |
476 |
| 399/309 |
To produce duplex |
106 |
| 399/318 |
By pressure |
123 |
| 399/298 |
Color |
157 |
| 399/302 |
By intermediate transfer member |
773 |
| 399/303 |
Copy medium carrier (e.g., drum or belt) |
321 |
| 399/304 |
Having gripper |
33 |
| 399/305 |
Vacuum or pneumatic |
46 |
| 399/300 |
From multiple positions |
39 |
| 399/299 |
From plural photoconductive members (e.g., drums) |
296 |
| 399/301 |
Registration |
345 |
| 399/310 |
Electrostatic |
118 |
| 399/311 |
Corona |
71 |
| 399/312 |
Having belt transporting copy |
76 |
| 399/314 |
Having applied bias |
182 |
| 399/316 |
Having copy medium guide |
140 |
| 399/317 |
Retractable |
52 |
| 399/315 |
Having discharger (e.g., separation) |
141 |
| 399/313 |
Roller or belt |
347 |
| 399/306 |
From plural photoconductive members (e.g., duplex) |
80 |
| 399/307 |
Having simultaneous fixing |
151 |
| 399/319 |
Vibration |
28 |
| 399/296 |
Treatment of developed image prior to transfer |
197 |
| 399/91 |
Internal machine environment |
61 |
| 399/92 |
Forced air circulation |
293 |
| 399/93 |
Having filtering (e.g., ozone removal) |
138 |
| 399/97 |
Humidity |
46 |
| 399/98 |
Particle or contaminant control |
203 |
| 399/102 |
Seal |
122 |
| 399/103 |
Developer seal |
249 |
| 399/105 |
Elastic material |
85 |
| 399/104 |
Magnetic |
87 |
| 399/106 |
Toner cartridge |
277 |
| 399/99 |
Toner removal |
121 |
| 399/100 |
Charging member (e.g., corona wire) |
158 |
| 399/101 |
Transfer member |
251 |
| 399/94 |
Temperature |
105 |
| 399/96 |
Photoconductive member |
31 |
| 399/95 |
Platen |
12 |
| 399/75 |
Machine operation |
147 |
| 399/79 |
Accounting |
151 |
| 399/80 |
User access |
91 |
| 399/90 |
Electrical connection |
281 |
| 399/88 |
Having power supply |
267 |
| 399/89 |
Supplying power to charger |
91 |
| 399/82 |
Job mode |
422 |
| 399/83 |
Having memory |
134 |
| 399/85 |
Having mode change |
228 |
| 399/86 |
Auto copy size or magnification |
83 |
| 399/87 |
Having priority interrupt |
96 |
| 399/84 |
Key sheet |
66 |
| 399/81 |
Operator interface (e.g., display control panel) |
564 |
| 399/76 |
Sequential control |
75 |
| 399/77 |
Programmed |
151 |
| 399/78 |
Reference signal (e.g., pulse train) |
56 |
| 399/411 |
Miscellaneous |
45 |
| 399/8 |
Remote monitoring |
345 |
| 399/127 |
Supplemental electrophotographic process |
52 |
| 399/128 |
Exposure or charging (e.g., fatigue treatment) |
135 |
| 399/129 |
Of residual toner |
65 |
