| Patents for G03G 21 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge (34,276) | 
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| 02/11/1992 | US5087941 Xerographic reproducing machine for controlled copying of manually disposed documents | 
| 02/11/1992 | US5087939 Image forming apparatus and image member cartridge | 
| 02/11/1992 | US5087932 Electrophotographic image forming terminal having an improved arrangement of electrical parts | 
| 02/11/1992 | US5087543 Electrophotographic printer | 
| 02/11/1992 | US5087542 Electrophotographic image-forming method wherein an amorphous silicon light receiving member with a latent image support layer and a developed image support layer and fine particle insulating toner are used | 
| 02/11/1992 | US5087507 Dark color layer; iridescent layer that copies dark; no distinction between symbols and background on copies | 
| 02/11/1992 | CA1295654C Image production device vacuum cleaner | 
| 02/05/1992 | EP0469796A2 Apparatus for duplicating or printing | 
| 02/04/1992 | US5086319 Multiple servo system for compensation of document mis-registration | 
| 02/04/1992 | US5086318 Image forming apparatus having transfer material carrying device | 
| 02/04/1992 | US5086317 Editing area setting method and editing area setting apparatus in an image forming apparatus | 
| 02/04/1992 | US5086316 Lifting the photosensitive body in an image forming apparatus | 
| 02/04/1992 | US5086309 Image forming apparatus | 
| 02/04/1992 | US5085963 Composed of toner and carrier which consists of resin and magnetic powder; good fluidity, cleaning property, durability and stability | 
| 02/04/1992 | US5085918 Image bearing surface, solid toner of colorant, transparent polymeric binder and charge carrier | 
| 02/02/1992 | WO1992005477A1 Liquid developer systems for imaging on transparent and opaque substrates | 
| 01/29/1992 | EP0468752A2 Image forming apparatus | 
| 01/29/1992 | EP0468751A2 Image forming apparatus | 
| 01/29/1992 | EP0468750A2 An image forming apparatus | 
| 01/29/1992 | EP0468749A2 An image forming apparatus | 
| 01/29/1992 | EP0468492A2 Electrophotographic printing apparatus | 
| 01/29/1992 | EP0468489A2 Image forming apparatus | 
| 01/29/1992 | EP0468406A2 Color image electro-photography apparatus | 
| 01/29/1992 | CN2094759U Blueprint machine ammonia purifier | 
| 01/28/1992 | US5084734 Developer container for an image recording apparatus | 
| 01/28/1992 | US5084730 Operation input device for image forming machine | 
| 01/22/1992 | EP0467609A2 Method for repeated electrical charging of a photoconductor layer and corresponding apparatus | 
| 01/22/1992 | EP0467418A1 A process kit and an image forming apparatus using the same | 
| 01/22/1992 | EP0467241A2 Character printer and recognition system | 
| 01/21/1992 | US5083286 Image forming apparatus receiving external data to perform a predetermined process | 
| 01/21/1992 | US5083169 Device for removing deposits from a photoconductive element of an image recorder which is movable between a cleaning and non-cleaning position | 
| 01/21/1992 | US5083163 Photoconductor resetting following multiple charge images | 
| 01/21/1992 | US5083159 Process for initial alignment of document illuminator | 
| 01/21/1992 | US5083158 Photoconductive cartridge having shutter locking device for holding opening of the cartridge in closed position | 
| 01/16/1992 | DE4122036A1 Electrographic copier with editing function - allows erasure of editing zone defined by marking applied to original | 
| 01/15/1992 | EP0466173A2 Process cartridge and image forming apparatus using same | 
| 01/15/1992 | EP0466172A2 Sheet feed for an image forming apparatus | 
| 01/15/1992 | EP0466143A2 Image forming apparatus featuring a custom formed scanned surface for effecting high definition images | 
| 01/14/1992 | US5081699 Program ahead file transfer in a reproduction machine | 
| 01/14/1992 | US5081595 Paper supply tray status in electronic printers | 
| 01/14/1992 | US5081505 Cleaning apparatus having indexable wiper blades | 
| 01/14/1992 | US5081504 Drum cleaning unit for image recording apparatus | 
| 01/14/1992 | US5081503 Compact magnetic bead pick-off device | 
| 01/14/1992 | US5081497 Document registration utilizing retractable transparent member beneath platen | 
| 01/14/1992 | US5081496 Image forming apparatus having a ventilated contact charging unit | 
| 01/14/1992 | US5081495 Image forming apparatus using an image member cartridge having a source of offset preventing liquid | 
| 01/14/1992 | US5081494 Job supplement for electronic printing machines | 
| 01/14/1992 | US5081490 Method of controlling image forming apparatus when a jam occurs in the original feeder | 
| 01/14/1992 | US5080976 Blade and method for preparation thereof | 
| 01/14/1992 | US5080342 Finisher for finishing paper sheets | 
| 01/08/1992 | EP0465217A2 Frequency sweeping excitation of high frequency vibratory energy producing devices for electrophotographic imaging | 
| 01/08/1992 | EP0465214A2 Imaging devices | 
| 01/08/1992 | EP0465210A2 Segmented resonator structure having a uniform response for electrophotographic imaging | 
| 01/08/1992 | EP0465208A2 Edge effect compensation in high frequency vibratory energy producing devices for electrophotographic imaging | 
| 01/08/1992 | EP0465179A2 Electronic copying/printing machines | 
| 01/08/1992 | EP0465166A2 Job/page proofing for electronic printers | 
| 01/08/1992 | EP0465093A2 Method and apparatus for stream printing in an electronic reprographic device | 
| 01/08/1992 | EP0464349A2 Image forming apparatus and method | 
| 01/08/1992 | EP0464032A1 Device for cleaning the transfer carrier of an electrophotographic printing or copying machine. | 
| 01/07/1992 | US5079723 Touch dialogue user interface for reproduction machines | 
| 01/07/1992 | US5079599 Copying machine providing two-in-one mode copying operation including the use of an automatic document feeder | 
| 01/07/1992 | US5079593 Toner recycling mechanism detachably connected to a cartridge | 
| 01/07/1992 | US5079592 Cleaning system for electrophotographic apparatus | 
| 01/07/1992 | US5079588 Movable scanning system responsive to platen cover postion and operation mode | 
| 01/07/1992 | US5078428 Copy-proof sheet | 
| 01/07/1992 | US5078378 Dynamic sheet count predictor | 
| 01/02/1992 | EP0463399A2 Sweep and vacuum xerographic cleaning method and apparatus | 
| 12/31/1991 | US5077795 Security system for electronic printing systems | 
| 12/31/1991 | US5077582 Photocopy monitoring system | 
| 12/31/1991 | US5077581 Image forming apparatus with detachable memory to provide a procedure display feature | 
| 12/31/1991 | US5077579 Copies with automatic document feeder | 
| 12/31/1991 | US5077578 Development system | 
| 12/31/1991 | US5077566 Image forming apparatus | 
| 12/31/1991 | US5076561 Electronic photo-copying apparatus | 
| 12/24/1991 | US5075733 Web cleaning device for cleaning toner off an image member | 
| 12/24/1991 | US5075729 Image forming apparatus having a developing and cleaning function using a controlled potential difference between surface and developing bias | 
| 12/24/1991 | US5075702 Encoder roll | 
| 12/24/1991 | US5074596 Currency paper, especially bank note, with a safety design and process for producing it | 
| 12/24/1991 | US5074342 Device for non-contaminating changing of a toner container in a toner conveying means of a non-mechanical printer or copier means | 
| 12/18/1991 | EP0461920A2 Printing systems | 
| 12/18/1991 | EP0461656A2 Apparatus for forming image pictures | 
| 12/18/1991 | EP0461611A2 Electronic photographing apparatus | 
| 12/17/1991 | US5073803 Copying apparatus provided with an automatic document feeder and a sheet binding unit | 
| 12/17/1991 | US5073802 Image forming apparatus capable of changing image forming modes during continuous image forming operation | 
| 12/17/1991 | US5073800 Electrophotographic apparatus with manual and programmable blade cleaner | 
| 12/17/1991 | US5073796 Cooling system for an apparatus with a heat generating element therein | 
| 12/17/1991 | US5073795 Electrophotography type image forming apparatus having improved exchanging kit | 
| 12/17/1991 | US5073794 Image duplicating apparatus in which user specified operational conditions are stored and used based on the detected nature of the document being copied | 
| 12/12/1991 | WO1991019228A1 Device and medium for animation and method of photographing picture rapidly and continuously | 
| 12/11/1991 | EP0460773A2 Apparatus for forming an image on a record medium | 
| 12/11/1991 | EP0460772A2 Apparatus for forming an image on a record medium | 
| 12/11/1991 | EP0460659A2 Facsimile apparatus | 
| 12/11/1991 | EP0460658A2 Cleaning blade for electrophotography, cleaning device for electrophotography, apparatus unit, electrophotographic apparatus and fascimile apparatus | 
| 12/11/1991 | EP0460303A2 Continuous-form electrophotographic printers | 
| 12/10/1991 | US5072310 Ic card for image processor | 
| 12/10/1991 | US5072260 Image forming apparatus having analog and digital exposure means | 
| 12/10/1991 | US5072258 Method of controlling surface potential of photoconductive element | 
| 12/10/1991 | US5072243 Electrostatic purge for an ion projection device | 
| 12/04/1991 | EP0459607A2 Recording apparatus | 
| 12/04/1991 | EP0252122B1 Apparatus and method for electrophotographically producing copies from originals having continuous-tone and other content |