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Class Number: 355 Class Title: PHOTOCOPYING Subclass Subclass Number Title 1 INCLUDING FIBER OPTICS 2 HOLOGRAM, SEISMOGRAM, GRAPH OR SCALE COPYING 200 ELECTROPHOTOGRAPHY 201 .Unauthorized copy prevention 202 .Combined with diverse subject matter 203 .Diagnostic testing 204 ..Computer controlled 205 ...Of malfunction 206 ....Display, warning or shutdown 207 ....Correction of malfunction 208 ...With alteration (e.g., optimization) 209 ...With indicator 210 .Latent image formation 211 ..Particular photoresponsive member 212 ...Web or belt 213 ....Drum supported and fed 214 ..With control of image contrast 215 ..With airborne contaminant control 216 ..With charge sensing to terminate charging 217 ..With transfer of electrostatic image (TESI) 218 ..With edge or margin feature including erasure or image shifting 219 ..Charging or discharging 220 ...With simultaneous light imaging or illumination 221 ...Corona 222 ....Alternating current 223 ....Negative polarity 224 ....With fringe or needle-like electrodes 225 ....With control grid (e.g., scorotron) 226 ....Bipolar 227 ...Nonuniform 228 ..Illumination 229 ...Light source 230 ...Object (e.g., document) holder 231 ....Platen cover 232 ...Projection 233 ....Scanning 234 .....With movable platen (including platen drive and positioning means) 235 .....With drive and positioning means for movable scanning carriage of optical projection means 236 .....With vibration damping means 237 .....Lens strip 238 .....Fiber optics 239 .....Line or half-tone image 240 .....Fresnel lens 241 ....Full frame exposure 242 ....Reflex exposure 243 ....With variable magnification 244 ....Composite imaging 245 .Latent image development 246 ..With developed image contrast/density control (e.g., by tonerr concentration control, developing electrode bias, etc.) 247 ..Powder cloud 248 ...Flat plate 249 ...Cloud charging 250 ..Fibrous brush 251 ..Magnetic brush 252 ...Magnetic belt 253 ...Loading of brush 254 ..Cascade 255 ..Fluidized bed 256 ..Liquid 257 ...Electrophoretic 258 ...Polar ink 259 ..Donor (e.g., using a roller as a donor) 260 ..Container 261 ..Electrode (e.g., bias electrode) 262 ...Segmented or perforated 263 ...Flexible 264 ...Self-cleaning 265 ...Variable applied electric potential 266 ..Enhancement of portions of the image 267 ..Simultaneous positive and negative visible image formation 268 ..Reversal of light and dark portions of the visible image 269 ..Simultaneous development and cleaning 270 ..Single device for developing and cleaning 271 .Developed image transfer or display 272 ..Multiple transfer 273 ..Treatment to enhance transfer 274 ..Electrostatic transfer of toner 275 ...With conductive transfer web 276 ..A.C. field transfer 277 ..Pressure transfer 278 ...With lamination 279 ...With heat 280 ...With adhesive 281 ....Including a transfer web 282 .Image fixing 283 ..With cleaning of image fixing means 284 ..Offset prevention 285 ..Heat fixation 286 ...Radiation 287 ....Microwave 288 ....Flash heating 289 ...Conduction 290 ....With pressure means 291 ...Convection 292 ..With vapor fixative 293 ..With liquid fixative 294 ..With solid fixative 295 ..With pressure 296 .Cleaning of photoresponsive imaging surface 297 ..With plural diverse cleaning means 298 ..With handling of cleaned material 299 ..Blade 300 ..Web 301 ..Brush 302 ...With brush scraper 303 ...With electrostatic assistt 304 ...Involving a filter bag 305 ...Magnetic 306 ..Cleaning beads 307 ..Liquid 308 .Document handling (including counting) 309 ..Of feed stock 310 ...With means for cutting feed stock 311 ...With different physical characteristics (e.g., size, shape, stiffness, transparency, color, etc.) 312 ...With pneumatic means 313 ...With mode change 314 ....Dominant mode with interrupt 315 ...With copy substrate stripping means 316 ..Including sheet tracking 317 ..Including sheet registration 318 ..Including sheet inverting 319 ...Duplex copy 320 ....Duplex original 321 ..Including delivery or collection 322 ...Stacking or imbricating 323 ...Sorting or collating 324 ...Fastening or binding 325 ...Interleaving 326 R .Colored copy production 326 M ..Microcapsules 326 K ...Mask original 326 P ...Pressure developing 327 ..Full color 328 ..With highlighting means 18 PROJECTION PRINTING AND COPYING CAMERAS 19 .Combined with or convertible to a contact printer 20 .With cathode ray tube for light source 21 .Collapsible or portable 22 .Stereoscopic 23 .Copying both sides of original 24 ..Duplex 25 ..Book page copying 26 .Photographing on both sides of photo-sensitive paper 27 .With developing 28 ..And film severing 29 .With film severing 30 .With temperature or foreign particle control 31 .Copying sound record 32 .Multicolor picture 33 ..Lenticular film 34 ...Including detailed diaphragm 35 ..Regulating light intensity or exposure time 36 ...Including electromagnet 37 ...Plural lamps 38 ...Including 39 .Tilting 40 .Identifying, composing, or selecting 41 ..Including photocell 42 ..Including electromagnet 43 ..Including reflector between original and photosensitive paper 44 .With focusing or projection screen 45 ..Reflector in optical path 46 .Plurall 47 .Image transferred to or from curved surface 48 ..Original moves continuously 49 ...Reflector between original and photo-sensitive paper 50 .Original moves continuously 51 ..Reflector between original and photo-sensitive paper 52 .Distortion introducing or rectifying 53 .Step and repeat 54 .Producing plural rows of pictures on photosensitive paper 55 .Focus or magnification control 56 ..Automatic or semiautomatic focusing when varying image size 57 ...Reflector between original and photo-sensitive paper 58 ...Including a cam or a screw with nonuniform pitch 59 ....And an indicator or scale 60 ..Reflector between original and photo-sensitive paper 61 ..Including indicator or scale 62 ...Vertical optical path 63 ..Vertical optical path 64 .Image transferred from individual documents to film strip 65 ..Reflector between original and photo-sensitive paper 66 .Reflector between original and photo-sensitive paper 67 .Illumination systems or details 68 ..Including photocell or phototube 69 ..Electricity to lamp controlled 70 ..Plural lamps 71 ..Including shutter, diaphragm, polarizer or filter 72 .Detailed holder for photosensitive paper 73 ..Including vacuum or fluid pressure 74 ..Including adjustable or selective masking frame 75 .Detailed holder for original 76 ..Including vacuum, fluid or spring pressure 77 .Methods 78 CONTACT PRINTING 79 .SUPERIMPOSED CARRIERS (e.g., montage or combination printing) 80 .Localized contrast modification (e.g., dodging or fading) 81 ..With scanning 82 .Book page copying 83 .Light monitoring exposure control 84 .With scanning 85 .Exposing on sensitized printing press plate or cylinder (e.g., photocomposers) 86 ..Step and repeat 87 ...Fluid pressure 88 .Multicolor printing 89 .Plural exposure stations or plural machines 90 ..With plural webs of indeterminate length (e.g., motion picture film) 91 .Fluid pressure retention of carrier and receiver in exposure position 92 ..Air-inflated cushion 93 ..Pivoted frame 94 ..With pump 95 .Step and repeat 96 ..Strip receiver 97 .Machine (i.e., having at least partly automatic feed) 98 ..Sound track printing 99 ..With flat exposure station structure 100 ...With further developing processing 101 ...With shutterss 102 ...Repeated printing from a carrier 103 ...Continuous running 104 ..With cylindrical or curved exposure station structure 105 ...Light lowered into vertical cylinder 106 ...With further developing processing 107 ....With intermediate printing material 108 ...Continuous running 109 ....Repeated printing from a carrier 110 ....Rotating exposure station cylinder 111 ....Indeterminate-length carrier and receiver 112 .Print counting and marking 113 .Light boxes 114 ..Transfer of plural images 115 ..With exposure timing 116 ..Foot-operated platen or shutter 117 ..Cylindrical or curved exposure station 118 ..Divided or flexible platen 119 ..Indirect illumination 120 ..Platen-controlled illumination circuit 121 ..With shutter 122 .Frames 123 ..Strip film 124 ..With shutters 125 ..With diffusing or masking (e.g., vignetting) 126 ...Adjustable parameters 127 ..Transfer of plural images 128 ..With platen 129 ...Divided platen 130 ....With closing spring bias 131 ...Attached platen 132 .Methods 133 MISCELLANEOUS