| Patents for G03G 15 - Apparatus for electrographic processes using a charge pattern (115,618) |
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| 09/16/1981 | EP0035573A1 Toner particles for electrophotography and electrophotographic process utilizing same |
| 09/15/1981 | US4289837 Development method and apparatus |
| 09/15/1981 | US4289395 Copy sheet deflector for an electrophotographic copier |
| 09/15/1981 | US4289377 Projecting apparatus |
| 09/15/1981 | US4289092 Liquid development fountain |
| 09/15/1981 | US4289026 Level indicating device |
| 09/15/1981 | CA1109162A1 Multiple-electrode print head for electroerosion printers |
| 09/15/1981 | CA1109119A1 Radiant fuser for duplex copies |
| 09/15/1981 | CA1109118A1 Illumination slit for a reproducing machine |
| 09/15/1981 | CA1109117A1 Method for effecting registration for a copying apparatus |
| 09/15/1981 | CA1109116A1 Zoom lens copier |
| 09/15/1981 | CA1109115A1 Copy reproduction machine with controller self check system |
| 09/15/1981 | CA1108845A1 Multiple brush developer applying apparatus and method |
| 09/15/1981 | CA1108844A1 Electrophotographic developer with carrier overflow control |
| 09/09/1981 | EP0035404A2 An electrophotographic reproducing machine |
| 09/09/1981 | EP0035362A1 A thermally conductive fuser member |
| 09/09/1981 | EP0035297A1 Reproduction apparatus provided with a cassette for a finite belt |
| 09/09/1981 | EP0035203A2 Process and apparatus for the electrophotographic preparation of half-tone colour copies |
| 09/09/1981 | EP0035170A1 Electrostatic copying apparatus |
| 09/08/1981 | US4288518 Electrographic magnetic developing method |
| 09/08/1981 | US4288515 Toner brush |
| 09/08/1981 | US4288514 Method for controlling image formation in electrophotography by pre-exposure step |
| 09/08/1981 | US4288148 Beam-splitting optical system |
| 09/08/1981 | US4287984 Belt with plural layers used in the automatic document feeding apparatus |
| 09/08/1981 | US4287850 Magnetic brush developing apparatus |
| 09/08/1981 | CA1108775A1 Method and apparatus for building up and reducing the pressure of gases in ionography imaging chambers |
| 09/08/1981 | CA1108732A1 Maintenance circuits and methods for copy production machines |
| 09/08/1981 | CA1108689A1 Hot roll fuser roll closure apparatus |
| 09/08/1981 | CA1108687A1 Collating system for slide reproduction |
| 09/08/1981 | CA1108686A1 High speed imaging of electrophotographic film by fine beam scanning |
| 09/08/1981 | CA1108685A1 Method and apparatus for generating charged particles |
| 09/08/1981 | CA1108684A1 Electrographic writing system |
| 09/02/1981 | EP0034816A2 Multiple transfer of tacky image areas using prolonged tack toners |
| 09/01/1981 | US4287524 Electrostatic recording method with delayed control voltage |
| 09/01/1981 | US4287461 Motor driving system |
| 09/01/1981 | US4287285 By electrography |
| 09/01/1981 | US4287283 Iron powder developing carrier and the manufacturing method of the same, developer containing said carrier and method of forming visible image by using said developer |
| 09/01/1981 | US4287280 Release agent applicators and method of applying release agent emulsions upon fusers in electrostatic copiers |
| 09/01/1981 | US4287278 Two superimposed ion current formed images using photoconductive screen gives wider potential range for gradation control in electrophotography |
| 09/01/1981 | US4286866 Bias voltage control for electrophotocopier magnetic brush |
| 09/01/1981 | US4286865 Electrophotographic copying apparatus for the production of multiple copies from a single latent electrostatic image |
| 09/01/1981 | US4286863 Pressure fusing apparatus for an electrostatic reproducing machine |
| 09/01/1981 | US4286862 Means for separating a copying paper from a sensitive body in an electronic copying machine |
| 09/01/1981 | US4286861 Electrostatic copying process and apparatus |
| 09/01/1981 | US4286706 Belt tracking system |
| 09/01/1981 | US4286544 Cross-mixing system |
| 09/01/1981 | US4286543 Apparatus for developing electrostatic image |
| 09/01/1981 | CA1108224A1 Print original with means for attachment to print cylinder |
| 09/01/1981 | CA1108223A1 Toner fixing devices |
| 09/01/1981 | CA1108222A1 Contact pressure adjusting device in heating, pressing and fixing apparatus for electrophotographic copiers |
| 09/01/1981 | CA1108221A1 Electrostatographic copying |
| 09/01/1981 | CA1108219A1 Reproduction machine with on board document handler diagnostics |
| 09/01/1981 | CA1108218A1 Operator console for a reproduction machine |
| 09/01/1981 | CA1107952A1 Apparatus for developing electrophotographic copying materials |
| 09/01/1981 | CA1107951A1 Electrophotographic process and apparatus for developing latent electrostatic charge images |
| 08/26/1981 | EP0034499A1 Multiple mode image processing apparatus and method |
| 08/26/1981 | EP0034269A2 Recirculating document feeder |
| 08/25/1981 | US4286157 Apparatus for ascertaining and/or regulating the amounts of radiation in the making of X-ray images |
| 08/25/1981 | US4286039 Method and apparatus for removing excess developing liquid from photoconductive surfaces |
| 08/25/1981 | US4286036 Process for reversal development |
| 08/25/1981 | US4286032 Forming a high contrast image |
| 08/25/1981 | US4286031 Electrically transferring a double-toned dielectric image from a light-charged coated sleeve to a moving substrate |
| 08/25/1981 | US4285591 Computer-controlled copy production machine having job separation capabilities |
| 08/25/1981 | US4285590 Precession scanning system for copier device |
| 08/25/1981 | US4285510 Sheet feeding cassette for copying apparatus capable of receiving manually inserted sheets |
| 08/25/1981 | US4285508 Collator |
| 08/25/1981 | US4285297 Magnetic brush developing devices |
| 08/25/1981 | US4285295 Fixing device for electrophotographic copying machines |
| 08/25/1981 | US4285090 Cleaning device for cold pressure fusing roller |
| 08/25/1981 | CA1107813A1 Method of and device for charging by corona discharge |
| 08/25/1981 | CA1107812A1 Roll fuser |
| 08/25/1981 | CA1107811A1 Fixing apparatus with heat and pressure for electrophotographic copiers |
| 08/25/1981 | CA1107810A1 Drum containing advanceable photosensitive web |
| 08/25/1981 | CA1107809A1 Copy finisher |
| 08/25/1981 | CA1107808A1 Exposure control for selective speed xerographic printing and the like |
| 08/25/1981 | CA1107807A1 Microfilm adaption unit for photocopier machines |
| 08/25/1981 | CA1107806A1 Multiple range variable magnification reproduction machine |
| 08/25/1981 | CA1107805A1 Variable magnification copying apparatus |
| 08/25/1981 | CA1107804A1 Variable magnification reproducing machine |
| 08/25/1981 | CA1107803A1 Sleeved organic rubber pressure rolls |
| 08/25/1981 | CA1107802A1 Automatic duplex control system for a reproduction machine |
| 08/25/1981 | CA1107533A1 Apparatus for measuring temperature |
| 08/19/1981 | EP0034067A2 Sheet feeding system and electrosensitive sheet |
| 08/19/1981 | EP0034066A2 Printer with forms overlay |
| 08/19/1981 | EP0033834A2 A control system for a copying machine and a method of providing a record of malfunctions |
| 08/18/1981 | US4285032 Tubular incandescent lamp |
| 08/18/1981 | US4285025 Corona charger |
| 08/18/1981 | US4284875 Heat roller fixing apparatus |
| 08/18/1981 | US4284697 Image formation method |
| 08/18/1981 | US4284696 Light transmission particle for forming color image |
| 08/18/1981 | US4284348 Original transport system for copying apparatus |
| 08/18/1981 | US4284347 Aperture-controlling device in a variable-scale photocopying machine |
| 08/18/1981 | US4284346 Electrophotographic copying machine |
| 08/18/1981 | US4284344 Electrophotographic density control |
| 08/18/1981 | US4284343 Apparatus for the electric level control of a developing solution in a storage tank |
| 08/18/1981 | US4284270 Stack for bottom sheet feeder |
| 08/18/1981 | CA1107342A1 Electrostatic transfer of magnetically held toner images |
| 08/18/1981 | CA1107134A1 Image transfer |
| 08/12/1981 | EP0033594A2 Copying apparatus |
| 08/12/1981 | EP0033552A1 Device for the detection of sheet-like objects |