| Patents for G03G 21 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge (34,276) | 
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| 06/23/1992 | US5124747 Color copy machine with detachable process cartridge | 
| 06/23/1992 | US5124732 Electrophotographic printer means with regulated electrophotographic process | 
| 06/23/1992 | US5124731 Generation of document covers in an electronic reprographic system using memory | 
| 06/23/1992 | US5124690 Information display device | 
| 06/23/1992 | US5124217 Magnetic image character recognition processes | 
| 06/17/1992 | EP0490642A2 An electrostatographic imaging device | 
| 06/17/1992 | EP0490641A2 Electrophotographic apparatus and method | 
| 06/17/1992 | EP0490457A1 Support provided with a security element | 
| 06/16/1992 | US5122840 Copying method and copying apparatus for obtaining collated duplex copies from duplex documents | 
| 06/16/1992 | US5122839 Dual action blade cleaner | 
| 06/16/1992 | US5122838 Image forming apparatus for developing a latent image on an image carrying body with a one component developing agent and simultaneously removing residual developing agent from the image carrying body | 
| 06/16/1992 | US5122836 Electrophotographic apparatus having a removable cartridge including a photosensitive body | 
| 06/16/1992 | CA1303634C Document handler jam clearance and job recovery system | 
| 06/11/1992 | WO1992009938A2 Method and apparatus for applying toner to an electrostatic image | 
| 06/11/1992 | WO1992009936A1 Migration imaging system | 
| 06/11/1992 | DE4139427A1 Photosensitive drum for copier - has closure fitting opening to maintain tension on exchangeable photosensitive film placed over its circumferential surface | 
| 06/09/1992 | US5121168 Image forming apparatus having a used toner storage portion | 
| 06/09/1992 | US5121167 Sweep and vacuum xerographic cleaning method and apparatus | 
| 06/09/1992 | US5121166 Belt type transfer device | 
| 06/09/1992 | CA1303078C Sheet transferring mechanism in an electrophotographicrecording apparatus | 
| 06/04/1992 | DE4139428A1 Electrophotographic copier with two similar units mountable on photoconductive element - guided over two rollers and having parallel plan parts and rotatable with both units as whole assembly | 
| 06/04/1992 | DE4139172A1 Page printer for computer - has LED indicator of 5 x 8 cells to indicate data in page memory | 
| 06/03/1992 | EP0488796A1 Image processing apparatus | 
| 06/03/1992 | EP0488350A2 Method of and device for driving and controlling a motor | 
| 06/03/1992 | EP0488147A2 Image forming apparatus having transfer drum cleaner | 
| 06/03/1992 | EP0294457B1 Microfilm printer apparatus and method | 
| 06/02/1992 | US5119213 Scanner document absence code system | 
| 06/02/1992 | US5119206 System for printing bound documents | 
| 06/02/1992 | US5119144 Cleaner provided in a copying machine | 
| 06/02/1992 | US5119138 Image forming apparatus having simultaneous cleaning and developing means | 
| 06/02/1992 | US5119137 Structure and method of mounting recording units in electrophotographic recording apparatus | 
| 06/02/1992 | US5119135 Selectively variable image positioning system for use in electrophotographic copying apparatus | 
| 06/02/1992 | US5119134 Photosensitive member protection shutter for use in a color image forming apparatus | 
| 06/02/1992 | US5119133 Packaged flexible photoconductive belt | 
| 06/02/1992 | US5119132 Densitometer and circuitry with improved measuring capabilities of marking particle density on a photoreceptor | 
| 06/02/1992 | US5119131 Method of creating tri-level images | 
| 06/02/1992 | US5119129 Image forming apparatus with selectable first and second optical forming means | 
| 06/02/1992 | US5119128 Apparatus for generating timing pulses in an electrophotographic printing machine | 
| 06/02/1992 | US5119079 Touch screen user interface with expanding touch locations for a reprographic machine | 
| 06/02/1992 | US5118093 Image-forming machine | 
| 05/27/1992 | EP0487041A2 Laser beam printer | 
| 05/27/1992 | EP0487039A2 Image formation cartridge | 
| 05/27/1992 | EP0487034A2 Scanning exposure-reproduction apparatus and scaling reproduction method therefor | 
| 05/27/1992 | EP0486972A2 Image-forming apparatus | 
| 05/27/1992 | EP0279856B1 Copier operable in an insert mode | 
| 05/27/1992 | CN1016823B Direct electrostatic printing apparatus and printhead cleaning structure therefor | 
| 05/26/1992 | US5117264 Damage resistant cleaning blade | 
| 05/26/1992 | US5117262 Electrophotographic apparatus with detachable ozone filter mounted near charging device | 
| 05/26/1992 | US5117261 Image forming apparatus with jam recovery function | 
| 05/26/1992 | US5117260 Image forming apparatus having streamlined input for control signals | 
| 05/26/1992 | US5117258 Apparatus with copying fee based on size and number of sheets used | 
| 05/20/1992 | EP0485632A1 Device and medium for animation and method of photographing picture rapidly and continuously | 
| 05/19/1992 | US5115280 Residual toner cleaning apparatus for color image forming device | 
| 05/19/1992 | US5115273 Image forming apparatus having a detachable memory | 
| 05/19/1992 | US5115272 Image-forming apparatus having an erase device located at a first or second position when the apparatus is in an opened or closed position | 
| 05/19/1992 | US5114818 Heat shielded electrostatographic imaging members | 
| 05/19/1992 | US5114814 Photosensitive member for electrophotography, image forming method and electrophotographic apparatus using the same | 
| 05/19/1992 | US5114782 Processed paper for documents protected from being reproduced | 
| 05/13/1992 | EP0485271A2 Process cartridge and image forming apparatus usable therewith | 
| 05/12/1992 | US5113227 Waste toner conveying apparatus | 
| 05/12/1992 | US5113226 Image transfer apparatus | 
| 05/12/1992 | US5113220 Drum cartridge for electrophotographic apparatus with two-piece protected shutter covering the drum | 
| 05/12/1992 | US5112709 Electrography | 
| 05/06/1992 | EP0483872A2 A copying machine with zoom function | 
| 05/05/1992 | US5111309 Density control system for a digital copier | 
| 05/05/1992 | US5111251 Apparatus for cleaning photoconductive belt | 
| 05/05/1992 | US5111246 Electrostatographic machine | 
| 05/05/1992 | US5111244 Image-forming machine with improved process and optional unit assemblies | 
| 05/05/1992 | US5111243 Apparatus and method for adjusting image contrast on a display device | 
| 05/05/1992 | US5111242 Image forming apparatus having a more smoothly controlled image forming element | 
| 05/05/1992 | US5110646 Process and materials for reconditioning a toner cartridge | 
| 05/05/1992 | US5110113 Device for controlling sheet positioning on an intermediate tray | 
| 04/30/1992 | WO1992007307A1 Development apparatus having a plate scavenging device | 
| 04/29/1992 | EP0482866A2 Densitometer and circuitry for measuring marking particle density on a photoreceptor | 
| 04/29/1992 | EP0482708A1 Printing device | 
| 04/29/1992 | EP0482311A1 Exception memory feature | 
| 04/28/1992 | US5109434 Image processing apparatus | 
| 04/22/1992 | EP0481852A2 Electrophotographic copying machine and method for detecting density of original image thereof | 
| 04/22/1992 | EP0481350A2 Image forming apparatus | 
| 04/22/1992 | EP0480952A1 Document security method and system. | 
| 04/21/1992 | US5107339 Method and apparatus for stream printing in an electronic reprographic device | 
| 04/21/1992 | US5107305 Cleaning mechanism and method having particle flow guides | 
| 04/21/1992 | US5107304 Removable cartridge for a color image forming apparatus | 
| 04/21/1992 | US5107303 Cleaning structure for moving image retainer for use in an image forming device | 
| 04/21/1992 | US5107300 Image forming apparatus including means for controlling the amount of light exposure | 
| 04/21/1992 | US5107299 Printer job recovery of complete or partially complete jobs in an electronic reprographic printing system | 
| 04/21/1992 | US5107285 Image forming apparatus with improved image retainer cleaning means | 
| 04/21/1992 | US5107278 Image forming apparatus | 
| 04/21/1992 | US5106076 Sorter controller | 
| 04/16/1992 | WO1992006416A1 Color image production apparatus with border color selection | 
| 04/15/1992 | EP0480638A2 Image processing apparatus | 
| 04/15/1992 | EP0480513A1 Method of and device for charging for copies made on a copying machine | 
| 04/15/1992 | EP0480454A2 An image forming apparatus | 
| 04/14/1992 | US5105284 Digital copier operable with external storing medium | 
| 04/14/1992 | US5105229 Image recording apparatus | 
| 04/14/1992 | US5105226 Developer carrier of a developing device for an image forming apparatus | 
| 04/14/1992 | US5105222 Electrophotographic copying apparatus having photoconductor with magnetic layer | 
| 04/14/1992 | US5105221 Image forming apparatus having detachable optical and processing units | 
| 04/14/1992 | US5105218 Method of resetting toner shortage of an image forming apparatus | 
| 04/14/1992 | US5105208 Image forming apparatus with good response motor servo control |