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