Patents
Sitemap › G03 - Photography; Cinematography; Analogous techniques using waves other than optical waves; Electrography; Holography › G03G - Electrography; Electrophotography; Magnetography › G03G 15 - Apparatus for electrographic processes using a charge pattern
Patents for G03G 15 - Apparatus for electrographic processes using a charge pattern (115,618)
04/1991
04/24/1991EP0424174A2 Production of images using an array of light emitting diodes
04/24/1991EP0424137A2 Color image forming apparatus
04/24/1991EP0424131A1 Imaging method
04/24/1991EP0424093A2 Imaging apparatuses and processes
04/24/1991EP0424085A2 Image forming system
04/24/1991EP0424053A2 Mold releasing elastic roller
04/24/1991EP0423809A2 Microfilm reader/printer
04/24/1991EP0423741A2 Cylindrical toner cartridge for electrophotographic printer
04/24/1991EP0423158A1 Dual color imaging method and apparatus.
04/24/1991CN1050948A Apparatus and method for manufacturing screen assembly for crt utiliying grid-developing electron
04/23/1991US5010551 Self contained troubleshooting aid for declared and non declared machine problems
04/23/1991US5010441 For rotating shaft
04/23/1991US5010415 Image forming apparatus having switchable color separation filter units
04/23/1991US5010373 Apparatus for supplying and discharging originals in a copying machine
04/23/1991US5010372 Black-and-white and color copier operable at different processing speeds
04/23/1991US5010371 Copying apparatus provided with automatic document feeder
04/23/1991US5010370 Transfer apparatus and image bearing apparatus using same having transfer means for contacting a backside of a transfer material
04/23/1991US5010369 Segmented resonator structure having a uniform response for electrophotographic imaging
04/23/1991US5010368 Magnetic transport roll for supplying toner or carrier and toner to a donor and magnetic developer roll respectively
04/23/1991US5010367 Dual AC development system for controlling the spacing of a toner cloud
04/23/1991US5010366 Slide transparency projector apparatus for use with an electrophotographic reproduction machine
04/23/1991US5010365 Electrophotographic apparatus having positioning mechanism for detachable process cartridge
04/23/1991US5010364 Copier with automatic document feed having jam prevention function
04/23/1991US5010363 Image forming apparatus having sheet jam reaction reset means
04/23/1991US5009973 Electrostatic latent images, developers, nonmagnetic toner
04/23/1991US5009352 Apparatus for conveying dielectric sheets
04/23/1991US5009187 Developing device with shutter
04/23/1991CA1283441C Multiple information array registration apparatus and method
04/21/1991CA2028051A1 Production of images using an array of light emitting diodes
04/21/1991CA2028050A1 Production of grey scale images using pixellated exposure device
04/21/1991CA2028049A1 Control of exposure energy delivery
04/18/1991WO1991005400A1 Circuit for operating high-load ohmic power users
04/18/1991WO1991004863A1 Device at printers
04/18/1991WO1990014231A3 Printer switchable between duplex and simplex mode on a page by page basis
04/17/1991EP0422957A2 Multiple beam optical modulation system
04/17/1991EP0422956A2 Multiple beam exposure control
04/17/1991EP0422892A2 Developer and developing process using said developer
04/17/1991EP0422604A2 Image printer system
04/17/1991EP0422602A2 Method of and apparatus for recording color image
04/17/1991EP0422238A1 Photosensitive member and electrostatic data recording method
04/17/1991CN1050777A Photohardenable electrostatic element with improved backtransfer characteristics
04/17/1991CN1012406B Optical receptor
04/16/1991US5008716 Paper cooling apparatus for an electrophotographic printer
04/16/1991US5008715 Copying machine allowing manual feed of copying paper
04/16/1991US5008714 Image forming apparatus having an automatic document feed device for automatically discharging a manually positioned document
04/16/1991US5008713 Sheet conveying apparatus and sheet conveying method
04/16/1991US5008712 Variable magnification copying apparatus and automatic shutdown therefor
04/16/1991US5008709 Document recycling copier for copying documents of varying sizes
04/16/1991US5008708 Monocomponent developing device
04/16/1991US5008707 Simultaneous charging and exposure for pictorial quality
04/16/1991US5008706 Electrophotographic apparatus
04/16/1991US5008704 Method of forming original image and additional image, and apparatus for performing same
04/16/1991US5008691 Multi-color electrophotograph apparatus
04/16/1991US5007625 Selectable sheet offsetting
04/11/1991DE3941196C1 Lubricant feed and cleaner for photocopier fixing roller - has roll of absorbent material extending for full width of roller
04/10/1991EP0421331A2 Developer carrying member, developing device, and device unit
04/10/1991EP0421330A2 Sheet feeding apparatus
04/10/1991EP0421299A2 Moisture stable biasable transfer members and method for making same
04/10/1991EP0420986A1 Printed metal container and multicolor printing thereof
04/10/1991EP0420855A1 Electrostatic method for multicolor imaging from a single toner bath.
04/09/1991US5007003 Recording apparatus
04/09/1991US5006934 Copying machine capable of storing image data
04/09/1991US5006905 Separating apparatus of transfer material
04/09/1991US5006904 Copying apparatus provided with automatic document feeder
04/09/1991US5006903 Sheet separating device and apparatus for use therein
04/09/1991US5006902 Image forming apparatus having a predetermined voltage applied to the transfer member
04/09/1991US5006900 Transfer apparatus having vacuum holes and method of making such apparatus
04/09/1991US5006899 Developing system for an electrophotographic multicolor imaging apparatus
04/09/1991US5006898 Developing apparatus for xerography
04/09/1991US5006897 Determination of charge-to-mass ratio
04/09/1991US5006896 Image density control method for an image forming apparatus
04/09/1991US5006895 Electrophotographic copying apparatus with book mode magnification capability
04/09/1991US5006894 Powdered
04/09/1991US5006893 Image forming apparatus with improved toner replenishment
04/09/1991US5006892 Xerographic setup and operating system for electrostatographic reproduction machines
04/09/1991US5006891 Image forming apparatus capable of performing serial page copy
04/09/1991US5006890 Image forming apparatus with a provision for designating different colored image areas
04/09/1991US5006869 Charged particle printer
04/09/1991US5006868 Method and apparatus for printing two or more colors using an electrophotographic process
04/09/1991US5006704 Optical scanner and method for generating and detecting a composite dot on a scanning medium
04/09/1991US5005821 Loose element sheet stacking assistance system
04/09/1991US5005817 Sheet feeding mechanism and method for an electrophotographic printer
04/09/1991US5005517 Developing device
04/09/1991US5005516 Device for aiding in measuring pigmented marking particle level in a magnetic brush development apparatus
04/09/1991CA1282819C Line scanner to reduce banding
04/04/1991WO1991004515A1 Process for transferring an image from a primary to a secondary support
04/04/1991WO1991004514A1 Reversible or irreversible production of an image
04/03/1991EP0420697A2 Reprographic machines with adjustable magnification
04/03/1991EP0420573A2 Light quantity control device
04/03/1991EP0420558A2 Sheet registration calibration
04/03/1991EP0420557A2 Belt type transfer device
04/03/1991EP0420524A1 Paper feeder
04/03/1991EP0420523A2 Heater control system
04/03/1991EP0420427A2 Image forming apparatus
04/03/1991EP0420217A2 Image forming apparatus
04/03/1991EP0420201A2 Cleaning method for use in a copy apparatus
04/03/1991EP0420197A2 Image forming method and image forming apparatus
04/03/1991EP0420178A2 Manuscript-reading apparatus
04/02/1991US5005055 Copying apparatus provided with automatic document feeder
04/02/1991US5005054 Frequency sweeping excitation of high frequency vibratory energy producing devices for electrophotographic imaging
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