Patents for G03G 15 - Apparatus for electrographic processes using a charge pattern (115,618) |
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01/10/1990 | EP0350154A2 Light source |
01/10/1990 | EP0349628A1 Electro-optical recorder with plural resolution recording. |
01/10/1990 | CN1006417B Focus adjusting mechanism in exposure optical apparatus |
01/09/1990 | US4893194 Multi-copy system for a digital copier |
01/09/1990 | US4893179 Digital color copying machine |
01/09/1990 | US4893153 Collation of multi-page documents |
01/09/1990 | US4893152 Copying apparatus having a sorter with a sheet binding function |
01/09/1990 | US4893151 Image developing apparatus |
01/09/1990 | US4893150 Copier |
01/09/1990 | US4893146 Paper separating claw for image forming apparatus |
01/09/1990 | US4893010 Image recording apparatus |
01/09/1990 | US4892696 Electrographic equipment, one step |
01/09/1990 | US4892299 Document feeder |
01/03/1990 | EP0349345A2 An electrophotographic lithographic printing plate precursor and a method of developing the same |
01/03/1990 | EP0349326A2 A developing apparatus |
01/03/1990 | EP0349249A2 An electrophotographic lithographic printing plate precursor and a method of developing the same |
01/03/1990 | EP0349072A1 A device for fixing or transferring and fixing powder containing thermoplastic resin on to a receiving material |
01/03/1990 | EP0349013A1 Paper feeding device |
01/03/1990 | EP0349012A1 Paper feeding device |
01/03/1990 | EP0349003A2 Reset mechanism for a counter for counting the number of revolutions of a photoconductive drum |
01/03/1990 | EP0348953A2 A printer for continuous-form recording paper |
01/03/1990 | EP0348951A2 Original scanning apparatus |
01/03/1990 | EP0348903A2 Optical text reading apparatus |
01/03/1990 | EP0348844A2 Electrophotographic process |
01/03/1990 | EP0348842A2 Image forming apparatus |
01/03/1990 | EP0348455A1 Electrophotographic reproduction apparatus including a self-coiling exposure shade |
01/03/1990 | EP0311646B1 Multi-purpose toner container for non-mechanical printers and copiers |
01/03/1990 | EP0160656B1 An electrophotographic information printer |
01/02/1990 | US4891681 Hard copy apparatus for producing center fastened sheet sets |
01/02/1990 | US4891680 Electrophotographic printing machine |
01/02/1990 | US4891677 Adhesive transfer apparatus, and image receiving web for adhesive transfer |
01/02/1990 | US4891676 Transfer medium cleaning station for use in an electrophotographic print engine |
01/02/1990 | US4891675 Developer density detection device |
01/02/1990 | US4891674 Retractable development apparatus |
01/02/1990 | US4891673 Development system |
01/02/1990 | US4891672 Image forming apparatus with developing device accommodating apparatus |
01/02/1990 | US4891671 Magnetic brush developing device |
01/02/1990 | US4891670 Copying machine in which copying magnification can be easily set |
01/02/1990 | US4891669 Scanning apparatus |
01/02/1990 | US4891668 Optical imaging system for a copying machine |
01/02/1990 | US4891667 Document platen for electrostatographic reproduction apparatus |
01/02/1990 | US4891665 Forward and reverse rotation mechanism |
01/02/1990 | US4891664 Illumination device for copying apparatus and the like |
01/02/1990 | US4891662 Image forming apparatus |
01/02/1990 | US4891657 Apparatus for forming an image |
01/02/1990 | US4891656 Print cartridge with non-divergent electrostatic field |
01/02/1990 | US4891572 Power source apparatus |
01/02/1990 | US4891495 Temperature control device for heat-roll fusing apparatus |
01/02/1990 | US4891287 Image editing method |
01/02/1990 | US4890826 Sorting apparatus for sheets |
12/28/1989 | WO1989012552A1 Method for xerographic printing of a textile material |
12/27/1989 | EP0348237A2 A laser beam projecting unit |
12/27/1989 | EP0348231A2 Image recording apparatus having toner reservoir |
12/27/1989 | EP0348138A1 System for priming the magnetic brush end seals of copier/printer machines |
12/27/1989 | EP0347973A1 Receiving tray for material in sheet form, more particularly material coming from a copying machine |
12/27/1989 | EP0347918A1 Method for forming electrophotographic images |
12/27/1989 | EP0347887A2 Sheet material separating device |
12/27/1989 | EP0347863A2 Document reader |
12/27/1989 | CA1264023A1 Electrophotographic color proofing method |
12/26/1989 | US4890212 Electric apparatus having a start-up control function |
12/26/1989 | US4890140 Image fixing apparatus |
12/26/1989 | US4890139 Image forming apparatus |
12/26/1989 | US4890138 Image forming apparatus having a plurality of developing devices |
12/26/1989 | US4890125 Image forming apparatus for controlling image forming operation in accordance with state of charger |
12/26/1989 | US4890124 Printing apparatus utilizing an electric field applied between a charge storage layer on a transfer drum and a photoconductive layer member |
12/26/1989 | US4890123 Print cartridge |
12/26/1989 | US4889296 Apparatus for grounding cassette |
12/20/1989 | EP0347358A1 Electrophotographic machines with toner density balance and stroke width control |
12/20/1989 | EP0346934A2 Image forming apparatus |
12/20/1989 | EP0346851A1 A sheet post-processing apparatus |
12/20/1989 | EP0346454A1 Dual purpose cleaning apparatus. |
12/20/1989 | EP0346450A1 Film belt loader package |
12/20/1989 | CN1006146B Improved color reproduction process |
12/19/1989 | US4888777 Semiconductor laser control apparatus |
12/19/1989 | US4888636 Image reproducing system |
12/19/1989 | US4888621 Multiple image forming apparatus with charger to prevent disturbance of already-transferred images |
12/19/1989 | US4888619 Multi-color image forming apparatus for forming a latent image pattern by use of residual toner remaining in a developing device |
12/19/1989 | US4888618 Image forming apparatus having ambient condition detecting means |
12/19/1989 | US4888617 Sheet feeding mechanism for an image recording device |
12/19/1989 | US4888616 Image processing apparatus |
12/19/1989 | US4888615 Image forming apparatus for selective copying of segmented areas of an image |
12/19/1989 | US4888464 High temperature conductive material inserted in core for uniform temperature distribution |
12/19/1989 | US4887964 Image fixing roller and image fixing apparatus using same |
12/19/1989 | US4887911 Developer mixer for electrophotographic copying machine |
12/19/1989 | US4887340 Elastic fixing roller |
12/14/1989 | WO1989012259A1 Process for developing latent magnetic or electrostatic images |
12/14/1989 | WO1989012258A2 Method for fusing developed image |
12/14/1989 | WO1989012257A2 Dual color imaging method and apparatus |
12/14/1989 | DE3919351A1 Method for high-vacuum xerography |
12/14/1989 | DE3819896A1 Device for the double-sided transfer of books onto roll film or microfiche |
12/13/1989 | EP0346220A1 Method of separately feeding a print medium sheet and apparatus therefor |
12/13/1989 | EP0346057A2 Imaging device |
12/13/1989 | EP0345425A2 Apparatus for taking microphotographs of bound graphical works having a tiltable book holder |
12/13/1989 | EP0345270A1 Play-free bearing installation for guide drums in printers or photocopiers. |
12/12/1989 | US4887133 Printer |
12/12/1989 | US4887132 Electrographic development apparatus having a ribbon blender |
12/12/1989 | US4887131 Developing apparatus using magnetic particles and toner particles |
12/12/1989 | US4887130 Electrostatic latent image developing apparatus |
12/12/1989 | US4887129 Editing copying machine |
12/12/1989 | US4887128 Method and apparatus for reproducing documents with variable information |