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)
07/1980
07/22/1980US4213693 Electrostatographic apparatus comprising improved developing bias control
07/22/1980US4213692 Bias voltage switching circuit for controlling concentration of image in copying apparatus
07/22/1980US4213690 Copying apparatus having a high-speed copying optical system
07/22/1980US4213617 Assembly for sealing lead-in areas in a developer station
07/22/1980US4213604 Automatic original handling device
07/22/1980US4213603 Method and apparatus for locating a moving sheet at a registration position
07/22/1980US4213551 Recording carrier transport assembly for use with side margin punched recording carrier webs
07/22/1980CA1082295A1 Electrophotographic copier
07/22/1980CA1082294A1 Roll fuser
07/22/1980CA1082293A1 Bi-directional copier output
07/22/1980CA1082292A1 Pre-collation copying
07/22/1980CA1082291A1 Copying apparatus
07/22/1980CA1082290A1 Automatic copier mode controls
07/22/1980CA1082015A1 Continuously variable reduction scanning optics drive
07/15/1980US4213190 Programmed copier control
07/15/1980US4213158 Optical data recording system utilizing acoustic pulse imaging to minimize image blur
07/15/1980US4213157 Self tracking laser scanning apparatus
07/15/1980US4212911 Photocathode for electroradiographic and electrofluoroscopic apparatus and method for manufacturing same
07/15/1980US4212631 Toner fusing arrangement
07/15/1980US4212532 Slit exposure type copying apparatus
07/15/1980US4212531 Aperture-controlling device in a variable-scale photocopying machine
07/15/1980US4212529 Apparatus for producing duplex copies
07/15/1980US4212457 Pre/post-collation copying system
07/15/1980US4212419 Strip guiding device
07/15/1980US4212264 Apparatus for supplying electrophotographic developer
07/15/1980CA1081763A1 Paper handling improvements in radiant fuser via corrugation of paper
07/15/1980CA1081762A1 Multi-process control system for an electrophotographic printing machine
07/15/1980CA1081723A1 Document feeder with recirculation and unloading
07/09/1980EP0013161A1 Apparatus for reproducing graphic information
07/09/1980EP0013160A1 Method and apparatus for determining the applied voltage at which Paschen breakdown occurs in electrography
07/09/1980EP0013158A1 Electrographic stylus writing apparatus
07/09/1980EP0012952A1 Laser beam scanning system
07/09/1980EP0012753A1 Developing device in an electrical photocopying apparatus.
07/08/1980US4211483 Copy production machines having job separation and collation capabilities
07/08/1980US4211482 Electrophotographic copying apparatus equipped with scanning system control device
07/08/1980CA1081309A1 Temperature sensing and control of a fusing roll
07/08/1980CA1081055A1 Colored xerographic image transfer process
07/01/1980US4210864 Apparatus for sensing toner density using a stationary ferromagnetic mass within the toner to increase sensitivity
07/01/1980US4210448 One-component magnetic toner, corona
07/01/1980US4210397 Copying machine with electromagnetic scavenger assembly and process
07/01/1980US4210396 Electrophotographic method and apparatus
07/01/1980US4210319 Copy set counter duplex tray
07/01/1980US4210044 Roll paper cutting arrangement
07/01/1980CA1080811A1 Electronography apparatus for the investigation of the human body
07/01/1980CA1080799A1 Apparatus for sensing the concentration of toner in a developer mix
07/01/1980CA1080785A1 Dual ribbon fuser
07/01/1980CA1080784A1 Pre-collation copying
07/01/1980CA1080783A1 Copier document handler
07/01/1980CA1080759A1 Apparatus for feeding sheets to ionography imaging chambers
06/1980
06/25/1980EP0012375A2 Identification card
06/25/1980EP0012374A1 Process for manufacturing identification cards
06/24/1980US4209803 Device for the electrical analysis of an image
06/24/1980US4209249 Method and apparatus for generating duplex copies electrophotographically from simplex originals
06/24/1980US4209248 Continuously variable reduction copier optics systems
06/24/1980US4208985 Apparatus for monitoring the concentration of toner in a developer mix
06/24/1980CA1080263A1 Magazine for holding a stack of sheet material
06/24/1980CA1080033A1 Image transfer mechanism
06/17/1980US4208697 Apparatus for charging photo-electrostatic semiconductor layers
06/17/1980US4208122 Reproduction apparatus comprising sorting device
06/17/1980US4208121 Apparatus for developing latent images of X-rayed objects on dielectric receptor sheets
06/17/1980US4207910 Method and apparatus for building up and reducing the pressure of gases in ionography imaging chambers
06/17/1980CA1079762A1 Multibin shingling type stack feeder
06/17/1980CA1079761A1 Sheet feed apparatus
06/17/1980CA1079674A1 Paper alignment rollers
06/17/1980CA1079519A1 Self-compensating photoconductor web
06/11/1980EP0012025A1 Apparatus for collecting sheets
06/11/1980EP0011863A1 Current controller for an electrical load
06/10/1980US4207101 Process for magnetically transferring a powder image
06/10/1980US4207100 Formation of electrostatic latent image
06/10/1980US4207059 Backup roll for heated fuser system
06/10/1980US4207057 Fixing device for use in electrophotographic copying machine
06/10/1980US4206996 Job recovery method and apparatus
06/10/1980US4206995 Reproduction machine with on board document handler diagnostics
06/10/1980US4206994 Belt tensioning system
06/10/1980CA1079129A1 Process and apparatus for developing an electrostatic latent image
06/10/1980CA1079128A1 Method of improving the electrical contact between the insulating image carrier and conductive support in electrographic recording processes
06/10/1980CA1079103A1 Optical system providing apparent relative movement in depth
06/03/1980US4206467 Recording method
06/03/1980US4206351 Electroradiographic apparatus
06/03/1980US4205912 Electrophotographic apparatus
06/03/1980US4205622 Electrophotographic developing apparatus having developer and refreshing rollers for liquid developers
06/03/1980CA1078912A1 Illumination system
06/03/1980CA1078911A1 Selective erasure of image on deformable medium recording devices
05/1980
05/29/1980WO1980001112A1 Device for electrostatically charging sheet material
05/28/1980EP0011480A2 Magnetic jet ink printing
05/28/1980EP0011203A1 Device for charging a dielectric layer electrostatically
05/27/1980US4205348 Laser scanning utilizing facet tracking and acousto pulse imaging techniques
05/27/1980US4205322 Electrostatic method of simultaneously transferring to a recording medium a toner image having different polarities
05/27/1980US4205321 DC Biased stylus for electrostatic recording
05/27/1980US4205320 Wet type direct image recording method
05/27/1980US4205220 Electrographic fusing apparatus and method
05/27/1980US4204766 Method and apparatus for controlling toner concentration of a liquid developer
05/27/1980US4204764 Noise rejecting compensation circuit for developing apparatus
05/27/1980US4204732 Focus adjusting mechanism for variable magnification device
05/27/1980US4204731 Apparatus for electrophotographic copying with means for effecting image penetration through the copy carriers
05/27/1980US4204730 Electrophotographic apparatus
05/27/1980US4204729 Transmitting and copying machine
05/27/1980US4204728 Method and apparatus for color conversion
05/27/1980US4204727 Multimode reproducing apparatus
05/27/1980US4204725 Apparatus for detecting information stored on photocopying media, transmitting and storing the same
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