Patents for G03G 15 - Apparatus for electrographic processes using a charge pattern (115,618) |
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10/02/1990 | US4961090 Large media proportional copying system |
10/02/1990 | US4961089 Method and apparatus for web tracking with predictive control |
10/02/1990 | US4961088 Monitor/warranty system for electrostatographic reproducing machines using replaceable cartridges |
10/02/1990 | US4960660 Radiation exposure, stripping cover sheet, lamination, peeling temporary surface, charging, developing |
10/02/1990 | US4960273 Dual mode document feeder |
10/02/1990 | US4960070 Developing apparatus |
10/02/1990 | US4960069 Magnetic brush developing device |
10/02/1990 | CA1274860A1 Apparatus and method for processing sheets of different lengths |
09/30/1990 | CA2013216A1 High resolution superimposed images from photopolymer electrographic master |
09/27/1990 | DE4002013A1 System for adjusting output of charging units for image prodn. - includes unit for charging light responsive or photo-conductor drum and discharge lamp which clears charge produced on drum |
09/26/1990 | EP0389277A2 Exposure device |
09/26/1990 | EP0389267A2 Structure and method of mounting recording units in electrophotographic recording apparatus |
09/26/1990 | EP0389241A2 Electrostatic latent image developing devices |
09/26/1990 | EP0389229A2 Image forming apparatus |
09/26/1990 | EP0388851A2 Apparatus for transporting sheet |
09/25/1990 | US4959790 Apparatus and method for producing color corrected reproduction of colored original images |
09/25/1990 | US4959731 Combined electrographic printer, copier, and telefax machine |
09/25/1990 | US4959712 Method and apparatus for color adjustment |
09/25/1990 | US4959695 Method and apparatus for forming a multicolor picture by electrophotography |
09/25/1990 | US4959693 Duplex reproducing apparatus with device for cooling and conveying fused toner image |
09/25/1990 | US4959692 Developing device with retractable cutoff member |
09/25/1990 | US4959691 Magnetic brush forming device for image generating apparatus |
09/25/1990 | US4959690 For developer mixture in a photocopier |
09/25/1990 | US4959689 Electrophotographic plate-making machine with independent motors for moving the copy holder, conveying rollers and focus region rollers |
09/25/1990 | US4959688 Image forming apparatus having charging and discharging means |
09/25/1990 | US4959687 Bias power source controller for an image forming apparatus |
09/25/1990 | US4959685 Image forming apparatus provided with a sheet storing unit |
09/25/1990 | US4959684 Copying machine |
09/25/1990 | US4959669 Color correction device for a color image forming apparatus |
09/25/1990 | US4959665 Laser printer with harmonic wave separation of the beam |
09/25/1990 | US4959663 Image recording device |
09/25/1990 | US4959529 Sheet heating device |
09/25/1990 | US4959286 Two-pass highlight color imaging with developer housing bias switching |
09/25/1990 | US4958974 Damped binding apparatus |
09/25/1990 | US4958828 Sheets handling device |
09/25/1990 | US4958827 Sheet ejector |
09/25/1990 | US4958823 Paper feeding stand |
09/25/1990 | US4958820 Sheet storing apparatus for copying machine |
09/20/1990 | WO1990010895A1 Image recording method |
09/20/1990 | WO1990010892A1 Electrostatic data recording medium and electrostatic data recording/reproducing method |
09/20/1990 | WO1990010542A1 Recorder |
09/20/1990 | DE4008519A1 Electrographic copying machine - contg. traps to collect stray toner powder and means for chemically treating the powder collected |
09/20/1990 | DE4008511A1 Elektrostatische druckeinrichtung Electrostatic pressure device |
09/20/1990 | CA2028814A1 Electrostatic information recording medium and electrostatic information recording and reproducing method |
09/20/1990 | CA2028813A1 Image recording method |
09/19/1990 | EP0388342A2 Electrophotographic machine with efficient transfer |
09/19/1990 | EP0388340A2 Paper handling for repetitive movement of variable length media through an image transfer station |
09/19/1990 | EP0388233A2 Developing device |
09/19/1990 | EP0388191A2 Developing device used in electrophotographic field |
09/19/1990 | EP0387986A2 Developer cartridge |
09/19/1990 | EP0387919A2 Improved print engine for color electrophotography |
09/19/1990 | EP0387847A2 Hub for tape cassette |
09/19/1990 | EP0387815A2 Charging member and electrophotographic apparatus using the same |
09/18/1990 | US4958232 Process apparatus for processing memory which stores information |
09/18/1990 | US4958199 Printing apparatus with registration positioning plate |
09/18/1990 | US4958198 Automatic document feeder and a copying apparatus equipped with such an automatic document feeder |
09/18/1990 | US4958195 Method and apparatus for fusing envelopes |
09/18/1990 | US4958194 Transferring device and an image forming apparatus |
09/18/1990 | US4958193 Member for developing electrostatic latent images |
09/18/1990 | US4958192 Image forming apparatus having plural developing units and a device for selecting a predetermined developing unit |
09/18/1990 | US4958191 Developing device |
09/18/1990 | US4958190 Image forming apparatus |
09/18/1990 | US4958189 Automatic exposure control system of image duplicating apparatus |
09/18/1990 | US4958188 Image forming apparatus with one reset switch for resetting one type of trouble and a second reset switch for resetting a second type of trouble |
09/18/1990 | US4958187 Image forming apparatus for scanning both sides of an original and producing a duplex copy |
09/18/1990 | US4958186 Image recording apparatus |
09/18/1990 | US4958172 Charge transfer imaging cartridge |
09/18/1990 | US4958171 Printing apparatus and method |
09/18/1990 | US4958098 Rotary device |
09/18/1990 | US4957774 Heating and pressing through a film contacting the toner image, controlling melt viscosity of toner |
09/18/1990 | US4957285 Document feeder with sheet edge regulating mechanism |
09/17/1990 | CA2007788A1 Electrophotographic machine with efficient transfer |
09/14/1990 | CA2006242A1 Paper handling for repetitive movement of variable length media through and image transfer station |
09/13/1990 | DE4007372A1 Paper feeder for photocopier or facsimile - has guides for cassette insertion and removal with separator and clamp for sheet retention when paper jamming occurs |
09/12/1990 | EP0387096A2 Image forming method |
09/12/1990 | EP0387036A2 A developing sleeve for a magnetic brush developing unit |
09/12/1990 | EP0386978A2 An image forming apparatus |
09/12/1990 | EP0386415A1 Image processing device |
09/12/1990 | EP0386414A1 Image processing device for transparent source documents |
09/12/1990 | CN1045303A Liquid developer formulation |
09/11/1990 | USRE33329 Automatic feeding device for copying machines |
09/11/1990 | US4956684 Printer head with light emitting element array |
09/11/1990 | US4956679 Image forming apparatus |
09/11/1990 | US4956678 Recording sheet transport apparatus |
09/11/1990 | US4956676 Electrographic color printer/copier |
09/11/1990 | US4956675 Ribbon blender for a development apparatus with self adjusting inner and outer ribbons |
09/11/1990 | US4956674 Metering assembly for development apparatus |
09/11/1990 | US4956673 Image forming apparatus with easily removable developing units |
09/11/1990 | US4956672 Copying magnification setting device for an electrophotographic copying apparatus |
09/11/1990 | US4956671 Wire cleaning device for a corona discharge type charger |
09/11/1990 | US4956670 Electrostatic latent image forming apparatus controlling the direction of derivation of ions |
09/11/1990 | US4956669 Control apparatus for controlling density of toner in a developing unit |
09/11/1990 | US4956668 Developer mix monitoring for replaceable developer stations |
09/11/1990 | US4956667 Priority interrupt during editing mode |
09/11/1990 | US4956666 Secure copier and method of reproduction |
09/11/1990 | US4956662 Apparatus for and method of recording color picture image |
09/11/1990 | US4956651 Image forming apparatus which sheet detection and timing control |
09/11/1990 | US4956649 Image recording apparatus forming photomasking pattern on photosensitive medium |
09/11/1990 | US4956211 For use in electrography |
09/11/1990 | US4955597 Copying apparatus having a device for holding sheets |