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)
09/1990
09/11/1990US4955595 Document feeding apparatus
09/11/1990US4955317 Image forming apparatus having a plurality of developing units each containing two-component developer
09/11/1990US4955316 Developing device
09/09/1990WO1990010896A1 Electrostatic separator
09/07/1990WO1990010257A1 Printed metal container and multicolor printing thereof
09/07/1990WO1990006520A3 Electrographic process for generating an electrical image signal
09/06/1990CA2008748A1 Integral fiber optic printhead
09/05/1990EP0385905A2 Printers with simplex and duplex cut sheet fusing
09/05/1990EP0385865A2 Developing unit and image forming apparatus having the developing unit
09/05/1990EP0385743A2 Apparatus and method for electrophotographically printing continuous half-tones
09/05/1990EP0385674A2 Toner image transferring device used in electrophotographic field
09/05/1990EP0385503A2 Image forming apparatus and method for optional coupling of a peripheral device for said image forming apparatus
09/05/1990EP0385462A2 Charging member, electrophotographic apparatus and charging method using the same
09/05/1990EP0384963A2 Apparatus for electrophotography representing half-tones
09/04/1990US4955032 Method and apparatus for mapping frames of an updatable electrophotographic medium
09/04/1990US4954931 Linear diffuse light source
09/04/1990US4954863 Image forming apparatus
09/04/1990US4954862 Exposure apparatus for color imaging system
09/04/1990US4954849 Copying apparatus operable in a two-side copy mode
09/04/1990US4954848 Control apparatus for a two-sided/multiple copy conveying unit
09/04/1990US4954847 Recirculating automatic document feeder
09/04/1990US4954846 Detecting device for detecting the size and/or presence of an original document
09/04/1990US4954845 Image fixing device and image forming apparatus with same
09/04/1990US4954844 Multicolor image developing device
09/04/1990US4954843 Electrophotographic image forming apparatus
09/04/1990US4954404 Electrostatics
09/04/1990US4953844 Paper supply device with a function of automatically sensing the life of feed rollers
09/04/1990CA1273712A1 Arrangement for driving a plurality of non-mechanical printer devices in tandem operation
09/04/1990CA1273676A1 Compensation for fine line prints
09/04/1990CA1273657A1 Vacuum document feeder
09/04/1990CA1273654A1 Duplex printing device
08/1990
08/30/1990DE4006055A1 Copier control using electronic data system - uses data link connectors for down-loading performance data to replacement panel or external computer
08/29/1990EP0384493A2 Improved print engine for color electrophotography
08/29/1990EP0384468A2 Fixing device
08/29/1990EP0384467A2 Image forming apparatus
08/29/1990EP0384434A2 Image forming equipment
08/29/1990EP0383983A1 Image forming apparatus
08/29/1990EP0383905A1 Electrophotographic luminescent amplification process
08/29/1990CN1009393B Fiber lens array mounting in reproduction machines
08/28/1990US4953031 Electronic blackboard having image display and print functions
08/28/1990US4952989 Photoreceptor attachment device for an electrophotographic copying machine
08/28/1990US4952988 Image forming apparatus having display device for displaying predetermined data
08/28/1990US4952987 Copying machine having plural developing units
08/28/1990US4952986 Copying apparatus
08/28/1990US4952985 Electrophotographic copying apparatus with monitoring of scanning speed
08/28/1990US4952983 Multi-colored image forming apparatus
08/28/1990US4952982 Copying apparatus and method
08/28/1990US4952981 Toner image printing apparatus
08/28/1990US4952980 Liquid processing head for an electrophotographic apparatus
08/28/1990US4952979 Isorunning-counterrunning developer station for an electrophotographic means
08/28/1990US4952978 Speed control of color development in electrophotographic process and apparatus
08/28/1990US4952977 Method of operating an electrophotographic copying apparatus wherein original documents are replaced during preliminary scannning, and apparatus for carrying out the method
08/28/1990US4952976 Copier with a toner supply device
08/28/1990US4952975 Image forming apparatus capable of accurate troubleshooting
08/28/1990US4952974 Detecting member for detecting the presence of an exchangeable unit in an image recording apparatus
08/28/1990US4952972 Life expiration detector for light source of image processing apparatus
08/28/1990US4952951 Electrophotographic recording apparatus
08/28/1990US4952948 Image recording apparatus
08/28/1990US4952782 Fixing unit for electrophotographic device
08/28/1990US4952781 Control over surface temperature of a fixing roller of a heat roller type fixing device
08/28/1990US4952011 Moving apparatus for optical systems
08/28/1990US4951936 Separation unit
08/28/1990US4951935 Paper stacker for an image forming apparatus
08/28/1990US4951893 Method and apparatus for splicing webs
08/28/1990US4951599 Bearing for a rotatable member
08/23/1990DE4003695A1 Image prodn. machine with image unit detachable from main machine - has photo responsive drum rotating about first axis of rotation and development roller rotating about second axis of rotation
08/23/1990DE3937041A1 Sheet delivery unit for photocopier or re=enlargement unit - has sheet turning system for selective single or double-sided printing of sheet material
08/22/1990EP0383625A2 Air nozzle
08/22/1990EP0383612A2 Sheet transporting apparatus
08/22/1990EP0383517A2 Sheet feeding device
08/22/1990EP0383345A2 Image forming apparatus
08/22/1990EP0383160A2 Developing apparatus
08/22/1990CN1044863A Fixing apparatus
08/22/1990CN1044862A Magnetic roller
08/21/1990US4951160 Image reproducing apparatus
08/21/1990US4951096 Self-calibrating temperature control device for a heated fuser roller
08/21/1990US4951095 Copying apparatus with image smear control
08/21/1990US4951094 Dispensing cartridge for a zerographic reproduction machine
08/21/1990US4951093 Developing unit for an electrostatic recording apparatus
08/21/1990US4951092 Copying machine with detachable developing device
08/21/1990US4951091 Image forming apparatus having toner quantity detection means
08/21/1990US4951090 Handle for portable copying machine
08/21/1990US4951088 Toner mass developed control ratio modification system
08/21/1990US4951070 Charge transfer imaging cartridge mounting and printer
08/21/1990US4951069 Minimization of communication failure impacts
08/21/1990US4951067 Controlled ink drop spreading in hot melt ink jet printing
08/21/1990US4950905 Colored toner optical developability sensor with improved sensing latitude
08/21/1990US4950889 Chromatic and misalignment compensation in a multiple beam laser scanning system
08/21/1990US4950570 Applying bias voltage, irradiation
08/21/1990US4950569 Responsive to incident actinic radiation, forming charge pattern, applying toner, radiation, and recording differences in intensity; high contrast
08/21/1990US4949949 Hybrid sequenced dadf duplexing system
08/16/1990EP0382549A2 Apparatus for image reading or processing
08/16/1990EP0382502A2 Precision medium handling system and method and devices therefor
08/16/1990EP0382492A1 Photoelectric converting device for forming charge latent image
08/16/1990EP0382448A2 Transfer device
08/16/1990EP0382311A2 Service method and apparatus for fast printers
08/16/1990EP0382253A2 Sheet Feeder
08/16/1990EP0382201A2 Corona discharging device
08/16/1990EP0382189A2 An image fixing apparatus
08/16/1990EP0382142A2 Material for forming image
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