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
04/02/1991US5005053 Image-forming machine having a process assembly comprising two independently movable units
04/02/1991US5005052 Image forming apparatus having vertically movable original cover
04/02/1991US5005051 Electrophotographic image recording apparatus using amorphous silicon hydride photosensitive drum
04/02/1991US5005050 Control of toner particle charge
04/02/1991US5005049 Copying machine with capacity to measure transparency of original
04/02/1991US5004223 Document conveyance apparatus facilitating conveyance belt replacement
04/02/1991US5004218 Retard feeder with pivotal nudger ski for reduced smudge
04/02/1991US5004217 Paper feeding device
04/02/1991US5003917 Developing apparatus with image quality control
03/1991
03/28/1991DE3930667A1 Reversible oder irreversible erzeugung einer abbildung Reversible or irreversible production of a figure
03/27/1991EP0419290A2 Developing device
03/27/1991EP0419139A2 Image fixing device
03/27/1991EP0419122A2 Image forming apparatus
03/27/1991EP0418855A1 Photohardenable electrostatic element with improved backtransfer characteristics
03/27/1991EP0418824A2 Developing device
03/27/1991EP0418823A2 Developing apparatus
03/27/1991EP0418300A1 Method for fusing developed image.
03/26/1991US5003493 Image forming apparatus
03/26/1991US5003382 Digital color copying machine
03/26/1991US5003355 Duplex recording paper transport control apparatus
03/26/1991US5003353 Electrophotographic printer with developing unit employing two-component toning system
03/26/1991US5003352 Liquid toner supply system and method
03/26/1991US5003351 Image forming apparatus
03/26/1991US5003350 Image forming apparatus
03/26/1991US5003347 Opening-closing mechanism for automatic document feeder
03/26/1991US5003346 Image forming device
03/26/1991US5003327 Printer autocontrast control
03/26/1991US5003325 Electric field paper stabilizing system for an electrographic plotter, printer or the like
03/26/1991US5002869 Monoclonal antibody specific to a novel epitope of the LFA-1 antigen of human T lymphocytes
03/26/1991US5002366 Scanning apparatus for reading an original image
03/26/1991US5002266 Sheet feed apparatus for image forming system
03/26/1991CA1282109C Fluid assisted ion projection printing head
03/26/1991CA1282107C Flat comb-like scorotron charging device
03/26/1991CA1282106C Fiber lens array mounting in reproduction machines
03/26/1991CA1282085C Frictionless vacuum feeder for book copying
03/23/1991CA2025972A1 Toner cartridge
03/22/1991CA2025680A1 Photohardenable electrostatic element with improved backtransfer characteristics
03/21/1991WO1991003829A1 Trip delay override for electrical circuit breakers
03/21/1991WO1991003773A1 Methods and apparatus for texturizing toner image bearing receiving sheets and product produced thereby
03/21/1991WO1991003772A1 Developing system for an electrophotographic multicolor imaging apparatus
03/21/1991WO1991003771A1 Toner fixing method and apparatus and image bearing receiving sheet
03/21/1991DE4028511A1 Multi-colour electrophotographic copier - uses successive imaging devices with second developer unit having guide element for toner transport to image roller
03/21/1991DE4028183A1 Automatic original feed for electrographic copier - has feed roller raised from document table during operation of handling mechanism for exposed documents
03/21/1991DE4028163A1 Developer unit for electrostatic copier - monitors toner conc. in feed path to developer roller to control toner topping cup
03/20/1991EP0418089A1 Heater activating apparatus
03/20/1991EP0418086A2 Short edge feed duplex printing machine and duplex cassette with side shifting inverter
03/20/1991EP0418085A2 Duplex feeder with side shifting inversion
03/20/1991EP0418029A2 Reprographic system
03/20/1991EP0418003A2 A method for controlling rotation of a fixing roller
03/20/1991EP0417814A1 Elastic revolution body having a silicone rubber composition and fixing device
03/20/1991EP0417801A2 Image forming apparatus having charging means
03/20/1991EP0417768A2 Conveying unit of image-forming machine
03/20/1991EP0165319B1 Method of forming image
03/19/1991US5001733 Reset mechanism for photoconductive drum
03/19/1991US5001520 Document conveyance apparatus with retractable auxiliary conveyance roller
03/19/1991US5001519 Image fixing apparatus having plural temperature settings
03/19/1991US5001517 Developing apparatus for reverse-developing an electrostatic latent image
03/19/1991US5001516 Page printer with electrically conductive lateral side plate
03/19/1991US5001515 Image forming apparatus and image forming unit mountable on same
03/19/1991US5001511 Image recording apparatus having exposure control unit
03/19/1991US5001501 Image forming apparatus
03/19/1991US5001500 Endless belt printing apparatus
03/19/1991US5001341 Horizontal sync signal generating device for use in optical printer
03/19/1991US5001030 Method and means for transferring electrostatically charged image powder
03/19/1991US5001028 Electrophotographic method using hard magnetic carrier particles
03/19/1991US5000438 Document feeder with sheet corner control
03/19/1991CA1281763C Liquid developer charge director control
03/19/1991CA1281582C Color filter elements
03/14/1991DE3942147C1 Partitioning fluid supply for fixing roller surface - has control element rotated to open and close outlet openings of dosing tube
03/13/1991EP0416919A2 Image forming apparatus
03/13/1991EP0416896A2 Passive, intelligent, sheet decurling system
03/13/1991EP0416895A2 Electrostatographic apparatus
03/13/1991EP0416634A2 A paper feeder for page printer
03/13/1991EP0416536A2 Liquid electrophotographic developing device
03/13/1991EP0416494A2 Liquid developing device and storage unit for use therein
03/13/1991EP0416305A2 Abrasion resistant tractor belt
03/13/1991EP0416096A1 Curl free ion deposition label printing
03/13/1991EP0362204B1 Covering and cleaning device for the optical character generator in an electrophotographic printing device
03/13/1991EP0134818B1 No carbon required paper for letter printer
03/12/1991US4999712 Photoelectric converting device for forming charge latent image and recording system thereof
03/12/1991US4999680 Support assembly for multiple development stations in an electrostatographic reproduction apparatus
03/12/1991US4999677 Imaging system with rigidizer
03/12/1991US4999676 Image forming apparatus having common signal lines
03/12/1991US4999675 Magnetic brush development apparatus including a self-adjustable take-off skive
03/12/1991US4999674 Image forming apparatus having synthetic recording functions
03/12/1991US4999673 Process control by creating and sensing half-tone test patches
03/12/1991US4999672 Computer control of photocopiers
03/12/1991US4999653 Venetian blinding
03/12/1991US4998835 Computer controlled timer for main drive pulse of form feed motor
03/12/1991US4998716 Sorter with jam-preventing members
03/12/1991CA1281365C Printing apparatus
03/12/1991CA1281364C Developing unit of electrophotographic apparatus
03/08/1991WO1991004517A1 Toning method and member for electrostatography
03/08/1991CA2065275A1 Toning method and member for electrostatography
03/07/1991WO1991003007A1 Imaging method and apparatus
03/07/1991WO1991003006A1 Image transfer apparatus and method
03/06/1991EP0415773A2 An image forming apparatus
03/06/1991EP0415753A2 An image forming apparatus
03/06/1991EP0415752A2 Image forming apparatus
03/06/1991EP0415741A2 Image forming apparatus
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