| Patents for G03G 15 - Apparatus for electrographic processes using a charge pattern (115,618) | 
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| 02/13/1990 | US4901111 Electrophotographic copying apparatus with an editing mode | 
| 02/13/1990 | US4901110 Vertical print engine for electrophotographic apparatus | 
| 02/13/1990 | US4901107 Lens repositioning device in a copier | 
| 02/13/1990 | US4901105 Constant velocity optical scanning system | 
| 02/13/1990 | US4901100 Single pass color highlighting copying system | 
| 02/13/1990 | US4900391 Recirculating folder for direct mail application | 
| 02/13/1990 | US4900005 Sheet feed apparatus | 
| 02/13/1990 | US4900003 Sheet conveying apparatus | 
| 02/13/1990 | US4899690 Container for electrostatographic toner or developer | 
| 02/13/1990 | US4899689 Developing device with a developing roller and using a single-component developer and method for producing such developing roller | 
| 02/08/1990 | WO1990001181A1 Fixing method and apparatus | 
| 02/08/1990 | WO1990001180A1 Toner dispenser for xerographic machines | 
| 02/08/1990 | WO1990000974A1 Arrangement for printing devices for monitoring printing medium containers | 
| 02/08/1990 | DE3925468A1 Movement control for variable optics of enlargement copier - transfers drive for fixed focal length lens holder through step=up cam to mirror | 
| 02/07/1990 | EP0354140A2 Method of improving yield of led arrays | 
| 02/07/1990 | EP0354128A2 Method and device for controlling toner density of an electrostatic printing apparatus employing toner | 
| 02/07/1990 | EP0354030A2 Development system | 
| 02/07/1990 | EP0353975A2 Process cartridge and image forming apparatus using same | 
| 02/07/1990 | EP0353791A2 Electrostatic copying apparatus | 
| 02/07/1990 | EP0353790A2 Electrostatic copying apparatus | 
| 02/06/1990 | US4899198 Dual purpose cleaning apparatus | 
| 02/06/1990 | US4899197 Fuser for use in an electrophotographic print engine | 
| 02/06/1990 | US4899196 Copy apparatus having a non-integrally sized transfer device | 
| 02/06/1990 | US4899194 Method of and device for detecting image | 
| 02/06/1990 | US4899193 Image recording apparatus having adjustable optical system | 
| 02/06/1990 | US4899192 Image information apparatus | 
| 02/06/1990 | US4899182 Electrophotographic image forming apparatus | 
| 02/06/1990 | US4899176 Method of reducing average data rate in rotating mirror laser recorder | 
| 02/06/1990 | US4899140 Display device for copying machines and the like | 
| 02/06/1990 | US4898375 Feed device with automatic sheet alignment | 
| 02/06/1990 | US4898374 Intermittent drive mechanism for copy stacking | 
| 02/06/1990 | US4898372 Copy paper processing apparatus | 
| 02/01/1990 | DE3919949A1 Kombinierte einheit, bestehend aus elektrofotografischem drucker, kopierer und telefax Combined unit consisting of electrophotographic printers, copying and fax | 
| 01/31/1990 | EP0352997A2 Direct electrostatic printer (DEP) and printhead structure therefor | 
| 01/31/1990 | EP0352731A2 Wet recording apparatus | 
| 01/31/1990 | EP0352334A1 Method of forming electrophotograph | 
| 01/31/1990 | CN1039314A Image forming apparatus | 
| 01/31/1990 | CN1039313A Image forming apparatus | 
| 01/31/1990 | CN1039198A Carbide die pressing method and dies for magnetic core of magnetic roller | 
| 01/30/1990 | US4897697 Counting system for use in a copying machine | 
| 01/30/1990 | US4897696 Method of detecting abnormality in heat roller | 
| 01/30/1990 | US4897695 Copying machine | 
| 01/30/1990 | US4897694 Perforation hole image, eliminating copying machine | 
| 01/30/1990 | US4897693 Magnetic particle carrying apparatus | 
| 01/30/1990 | US4897692 Fail safe fuser lamp control | 
| 01/30/1990 | US4897691 Apparatus for drying and fusing a liquid image to a copy sheet | 
| 01/30/1990 | US4897690 Image forming apparatus | 
| 01/30/1990 | US4897688 Document imaging system with bi-directional anamorphic magnification capability | 
| 01/30/1990 | US4897687 Rolled microfilm printing system and method | 
| 01/30/1990 | US4897677 Multicolored printing method and device | 
| 01/30/1990 | US4897675 Printer | 
| 01/30/1990 | US4897671 Integrated optic print head | 
| 01/30/1990 | US4897639 Image forming method and apparatus | 
| 01/30/1990 | US4897333 Copying method | 
| 01/30/1990 | US4897327 Correct-reading images from photopolymer electrographic master | 
| 01/30/1990 | US4896929 Holographic display module for displaying machine status | 
| 01/30/1990 | US4896876 Document feeding apparatus | 
| 01/30/1990 | US4896871 Sheet feeder for an image recording apparatus | 
| 01/30/1990 | US4896625 Developing device | 
| 01/25/1990 | WO1990000761A1 Device for developing electrostatic images on a film belt | 
| 01/25/1990 | WO1990000728A1 Developer mix monitoring for replaceable developer stations | 
| 01/24/1990 | EP0352121A2 Toner cartridge for a copying apparatus | 
| 01/24/1990 | EP0352102A2 An image forming apparatus | 
| 01/24/1990 | EP0351894A2 Image-forming machine | 
| 01/24/1990 | EP0351893A2 Image-forming machine | 
| 01/24/1990 | EP0351880A2 Image pickup apparatus | 
| 01/24/1990 | EP0351797A2 Silicone composition, elastic revolution body and fixing device using the same | 
| 01/23/1990 | US4896355 Device for photocopying a document | 
| 01/23/1990 | US4896223 Display and input device | 
| 01/23/1990 | US4896193 Multicolored image forming apparatus separable for ease of maintenance | 
| 01/23/1990 | US4896192 Image forming apparatus | 
| 01/23/1990 | US4896191 Sheet transferring mechanism in an electrophotographic recording apparatus | 
| 01/23/1990 | US4896190 Image forming apparatus with battery | 
| 01/23/1990 | US4896189 Lid opening and closing device for image input apparatus | 
| 01/23/1990 | US4896184 Image forming apparatus with a developing device | 
| 01/23/1990 | US4896183 Image formation apparatus with supplemental light source | 
| 01/23/1990 | US4896174 Transport of suspended charged particles using traveling electrostatic surface waves | 
| 01/23/1990 | US4896173 Data printer | 
| 01/23/1990 | US4895357 Lighttight film-delivery box and actuator apparatus therefor | 
| 01/23/1990 | US4895105 Developing apparatus with pressure regulating member | 
| 01/23/1990 | US4895104 Developer reservoir | 
| 01/23/1990 | US4895103 Automatic cleaning method for image development apparatus | 
| 01/23/1990 | CA1264775A1 Sheet removal device | 
| 01/23/1990 | CA1264595A1 Method of color electrophotography | 
| 01/17/1990 | EP0350919A2 Color image processing apparatus | 
| 01/17/1990 | EP0350901A2 Image reading method | 
| 01/17/1990 | CN1038886A Printing apparatus and toner/developer delivery system therefor | 
| 01/17/1990 | CN1006496B Paper feeding box used in copy machines with automatic paper feeding device | 
| 01/16/1990 | US4894688 Device for circulating developer | 
| 01/16/1990 | US4894687 Pressure transfixing of toner images using skewed rollers | 
| 01/16/1990 | US4894686 Transfer roller | 
| 01/16/1990 | US4894685 Multicolor image forming method and apparatus | 
| 01/16/1990 | US4894684 Image forming apparatus with developing device accommodating apparatus | 
| 01/16/1990 | US4894682 Variable magnification copying apparatus | 
| 01/16/1990 | US4894680 Image recording apparatus | 
| 01/16/1990 | US4894679 Method and apparatus for use in transferring an image | 
| 01/16/1990 | US4894669 Laser beam printer | 
| 01/16/1990 | US4894306 Antistatic agents, toners, images | 
| 01/16/1990 | US4893926 Focusing for optical print heads | 
| 01/11/1990 | WO1990000267A1 Apparatus and method for producing color corrected reproduction of coloured original images |