| Patents for G03G 21 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge (34,276) |
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| 05/28/1991 | US5019869 Toner fusing/finishing device for selecting alternatively the style of finishing on a glossy, matte, or textured print finish |
| 05/28/1991 | US5019861 Drive apparatus for a process cartridge of an image-forming apparatus |
| 05/28/1991 | US5018714 Original handling apparatus |
| 05/22/1991 | CN1051568A Thermoplastic inierpeneirating network structure and method of forming same |
| 05/21/1991 | US5017971 Exposure device for copying apparatus |
| 05/21/1991 | US5017962 Image forming apparatus with process-cartridges |
| 05/21/1991 | US5017848 Drive control circuit |
| 05/15/1991 | EP0427499A2 Belt type image forming unit |
| 05/15/1991 | EP0427471A2 Electrophotographic copying machine |
| 05/15/1991 | CN1051436A Developer carrying member, developing device and device unit |
| 05/14/1991 | US5016171 Copy cartridge warranty and billing system |
| 05/14/1991 | US5016114 Digital copier apparatus with external laser card storage medium and image compression variable with available memory |
| 05/14/1991 | US5016059 Photocopy machine remotely controlled copy counting system |
| 05/14/1991 | US5016029 Printer |
| 05/08/1991 | EP0426482A2 Filled thermoplastic resin compositions having an interpenetrating phase forming a three-dimensional network structure and melt-blending methods for forming the same |
| 05/07/1991 | US5014088 Inhibitable image forming apparatus including entered code data release means |
| 05/02/1991 | EP0425227A2 Electrophotographic image recording machine |
| 05/02/1991 | CA2029032A1 Thermoplastic interpenetrating network structure and method of forming the same |
| 04/30/1991 | US5012299 Color adjustment apparatus for color copying machine |
| 04/30/1991 | US5012293 Transfer station control in an electrophotographic reproduction device |
| 04/30/1991 | US5012286 Image forming apparatus having device for detecting concentration of developing agent |
| 04/30/1991 | US5012284 A printing machine |
| 04/30/1991 | US5012283 Copying apparatus having a lamp to form or erase an image |
| 04/30/1991 | US5012280 Copier which deletes inoperative functions from control panel |
| 04/30/1991 | US5011401 Elastic rotatable member and fixing apparatus |
| 04/23/1991 | US5010372 Black-and-white and color copier operable at different processing speeds |
| 04/23/1991 | US5010369 Segmented resonator structure having a uniform response for electrophotographic imaging |
| 04/23/1991 | US5010365 Electrophotographic apparatus having positioning mechanism for detachable process cartridge |
| 04/23/1991 | US5009973 Electrostatic latent images, developers, nonmagnetic toner |
| 04/17/1991 | EP0422604A2 Image printer system |
| 04/16/1991 | US5008712 Variable magnification copying apparatus and automatic shutdown therefor |
| 04/16/1991 | US5008711 Image forming apparatus |
| 04/16/1991 | US5008706 Electrophotographic apparatus |
| 04/10/1991 | EP0421331A2 Developer carrying member, developing device, and device unit |
| 04/09/1991 | US5006934 Copying machine capable of storing image data |
| 04/09/1991 | US5006896 Image density control method for an image forming apparatus |
| 04/09/1991 | US5006895 Electrophotographic copying apparatus with book mode magnification capability |
| 04/09/1991 | US5006891 Image forming apparatus capable of performing serial page copy |
| 04/09/1991 | US5005817 Sheet feeding mechanism and method for an electrophotographic printer |
| 04/03/1991 | EP0420697A2 Reprographic machines with adjustable magnification |
| 04/03/1991 | EP0420557A2 Belt type transfer device |
| 04/03/1991 | EP0420427A2 Image forming apparatus |
| 04/03/1991 | EP0420201A2 Cleaning method for use in a copy apparatus |
| 04/03/1991 | EP0420178A2 Manuscript-reading apparatus |
| 04/03/1991 | EP0419881A1 A coating material for obstructing optical flare and an image processing apparatus incorporating same |
| 04/02/1991 | US5005054 Frequency sweeping excitation of high frequency vibratory energy producing devices for electrophotographic imaging |
| 04/02/1991 | US5005053 Image-forming machine having a process assembly comprising two independently movable units |
| 03/27/1991 | EP0419122A2 Image forming apparatus |
| 03/27/1991 | EP0418618A1 A coating material for eliminating ozone and an image processing apparatus incorporating same |
| 03/26/1991 | US5003354 Method of removing a film from an image carrier of an image forming apparatus |
| 03/26/1991 | US5003353 Electrophotographic printer with developing unit employing two-component toning system |
| 03/26/1991 | US5003350 Image forming apparatus |
| 03/26/1991 | US5003346 Image forming device |
| 03/26/1991 | US5002869 Monoclonal antibody specific to a novel epitope of the LFA-1 antigen of human T lymphocytes |
| 03/26/1991 | US5002266 Sheet feed apparatus for image forming system |
| 03/20/1991 | EP0418029A2 Reprographic system |
| 03/20/1991 | EP0417768A2 Conveying unit of image-forming machine |
| 03/19/1991 | US5001733 Reset mechanism for photoconductive drum |
| 03/19/1991 | US5001516 Page printer with electrically conductive lateral side plate |
| 03/19/1991 | US5001499 Light scanning apparatus and image forming apparatus utilizing same |
| 03/19/1991 | US5001027 Electrophotographic apparatus and method |
| 03/19/1991 | CA1281763C Liquid developer charge director control |
| 03/13/1991 | EP0416919A2 Image forming apparatus |
| 03/13/1991 | EP0362204B1 Covering and cleaning device for the optical character generator in an electrophotographic printing device |
| 03/12/1991 | US4999679 Electrophotographic printing machine |
| 03/12/1991 | US4999678 Cleaning apparatus for cleaning the surface of a photosensitive member |
| 03/12/1991 | CA1281365C Printing apparatus |
| 03/06/1991 | EP0415441A2 A power supply control subsystem for an image forming apparatus |
| 03/05/1991 | US4998145 Image forming apparatus having a first mode for forming a multicolor image of restricted length and a second mode for forming a monocolor image of unrestricted length |
| 03/05/1991 | US4998133 Image forming apparatus with an automatic document feeder |
| 02/27/1991 | EP0414625A2 Transfer station control in an electrophotographic reproduction device |
| 02/27/1991 | EP0414622A2 Copying method and apparatus |
| 02/27/1991 | EP0414454A2 Copy quality monitoring |
| 02/27/1991 | EP0414273A2 Cleaning blade for electrophotography |
| 02/26/1991 | US4996625 Power source unit for image recording apparatus |
| 02/26/1991 | US4996567 Method of controlling fuser unit of image forming apparatus |
| 02/26/1991 | US4996566 Multicolor image forming apparatus with separately removable and insertable assembly units |
| 02/26/1991 | US4996564 Controllable drive of optics of a copier |
| 02/26/1991 | US4996562 Control device in image forming apparatus |
| 02/26/1991 | US4996561 Image forming apparatus with a document image edition function |
| 02/26/1991 | US4996556 Large document copying system |
| 02/26/1991 | US4996538 Apparatus for separating and recovering solid developer particles transported by a gaseous flow |
| 02/26/1991 | US4996124 Dye sensitized charge generating layer, charge transport layer, and electroconductive hole injecting layer on a substrate |
| 02/19/1991 | US4994861 Printing machine with charge neutralizing system |
| 02/13/1991 | CN2071349U Anti-two pieces of paper, thin paper duplicating auxiliary paper rolling device |
| 02/12/1991 | US4992884 Copier with an optional facsimile function and method of controlling the same |
| 02/12/1991 | US4992835 Electrophotographic image forming apparatus |
| 02/12/1991 | US4992834 Cleaning blade arrangement for image forming apparatus |
| 02/12/1991 | US4992830 Image recording apparatus that prevents toner dispersion |
| 02/12/1991 | US4992767 Magnet roll |
| 02/07/1991 | DE4024311A1 Imaging laser printer, digital copier or facsimile - shows data relating to working voltage and remaining working life when fixing unit is attached |
| 02/06/1991 | EP0411953A2 Reprographic apparatus |
| 02/06/1991 | EP0411844A2 Process control for electrostatographic printers |
| 02/06/1991 | EP0411825A2 Clamshell-type electrophotographic image forming apparatus |
| 02/06/1991 | EP0411579A2 Image forming apparatus |
| 02/05/1991 | US4990967 Copying method and apparatus |
| 02/05/1991 | US4990966 Using an electrophotographic process |
| 02/05/1991 | US4990964 Toner delivery system having a multi-functional toner container for non-mechanical printer and copier means |
| 02/05/1991 | US4990951 Image forming apparatus having function for controlling shutter by a pulse |
| 01/30/1991 | EP0410668A2 Queue management process |