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)
12/1981
12/15/1981US4306271 Sequentially pulsed overlapping field multielectrode corona charging method and apparatus
12/15/1981US4305655 Duplex printer and method of printing
12/15/1981US4305653 Scanning diagnostics
12/15/1981US4305652 Merging of information in a copier-printer system
12/15/1981US4305651 System for adjusting output current of discharge electrode for electrophotographic copying machines
12/15/1981US4305650 Illumination system
12/15/1981US4305646 Optical system for electro-optical scanner
12/15/1981US4305577 Apparatus for applying, varying and removing a normal force in a shingler wheel type document feeder
12/15/1981US4305576 Sheet separator
12/15/1981US4305529 Particle dispensing system
12/15/1981US4305330 Pressure application type image fixing method and image fixing apparatus therefor
12/15/1981CA1114442A1 Control system for a reciprocating carriage drive system
12/15/1981CA1114231A1 Record medium transport arrangement for a marginally perforated record medium
12/15/1981CA1114219A1 Electrophotographic apparatus and method for producing printing plates
12/10/1981WO1981003557A1 Document copier with automatic image quality control
12/10/1981WO1981003556A1 Electrophotographic method of obtaining image on dielectric foil
12/09/1981EP0041399A2 Electrostatographic developing apparatus and method
12/09/1981EP0041301A1 Copying apparatus suitable for producing duplex copies from simplex originals
12/09/1981EP0041276A1 Methods for the transfer of image deposits formed by electroscopic marking particles
12/09/1981EP0041198A1 Device for the removal of developing liquid from a recording material
12/09/1981EP0041104A2 Corona discharge device for electrophotographic apparatus
12/08/1981US4304809 For protection against forgery
12/08/1981US4304486 Automatic bias and registration control system for electrophotographic copier
12/08/1981US4304485 Sheet reversing apparatus for a copier/finisher system
12/08/1981US4304273 Toner container and toner dispensing apparatus
12/08/1981US4304192 Developer seal
12/08/1981US4304179 Marking method and device
12/08/1981CA1114012A1 Digitally regulated power supply for use in electrostatic transfer reproduction apparatus
12/08/1981CA1114011A1 Toner fusing arrangement
12/08/1981CA1114010A1 Copy production machines having job separation capabilities
12/08/1981CA1114008A1 Actuator for a copy sheet feeder in a reciprocating carriage drive system
12/08/1981CA1114007A1 Document feed for a copier machine
12/08/1981CA1114006A1 Method and apparatus for detecting information stored on photocopying media, transmitting and storing the same
12/08/1981CA1114004A1 Two color electrostatic copying machine
12/08/1981CA1114003A1 Duplex reproduction machine
12/08/1981CA1113767A1 Liquid development of charge pattern with areas of varying contrast potentials using developers with different colours and viscosity
12/01/1981US4303948 Image transcribing system
12/01/1981US4303545 Alkylphenol ethylene oxide adduct or hydrogenated soybean oil, diatomaceous earth and silica pigment for cleaning toner residue
12/01/1981US4303334 Heat regulator for the fusing device in an electrostatic copier
12/01/1981US4303332 Electrostatic recording apparatus
12/01/1981US4303331 Magnet for use in a magnetic brush development system
12/01/1981CA1113438A1 Facsimile stylus assembly
11/1981
11/26/1981WO1981003387A1 Charger for electrophotographic surfaces
11/24/1981US4302098 Printing apparatus
11/24/1981US4302096 Graphic forms overlay apparatus
11/24/1981US4302094 Development method and apparatus
11/24/1981US4302093 Combined transfer and registration system for electrophotographic copier
11/24/1981CA1113187A1 Data storage and retrieval system
11/24/1981CA1112922A1 Facetted reflector for photocopier
11/24/1981CA1112857A1 Method for the generation of a brush of developer powder at a magnet cylinder of a developing apparatus for the development of a latent image, generated particularly electrostatically, and developing apparatus thereof
11/18/1981EP0040128A2 Method for electrographic reproduction on any base by means of a magnetic monocomponent development toner
11/18/1981EP0040095A2 A magnetic brush cleaning system
11/17/1981US4301359 Heat roller type fixing apparatus for electrophotographic copying machine
11/17/1981US4301228 Electrographic developing material and developing method employing said developing material
11/17/1981US4300958 Adding molybdenum to magnetic material to improve coercive force
11/17/1981US4300832 Photocopy machines
11/17/1981US4300831 Slit exposure type illumination apparatus
11/17/1981US4300830 Sheet removal assembly
11/17/1981US4300829 Cascade illumination and switch control console
11/17/1981US4300758 Reverser mechanism for duplex printing/paper handling apparatus for cut sheet printing
11/17/1981US4300757 Apparatus for receiving recording sheets in upset state for copying machine
11/17/1981US4300710 Continuous form feeder
11/17/1981US4300475 Toning system
11/17/1981CA1112710A1 Contact heat fusing apparatus
11/17/1981CA1112709A1 Xerographic toner fuser
11/17/1981CA1112708A1 Apparatus for singularizing stacked dielectric receptor sheets for latent images
11/17/1981CA1112501A1 Electrostatographic photosensitive device comprising a hole transport layer between hole injecting and charge generation layers
11/11/1981EP0039403A2 Xerographic copier including controllable erase system
11/11/1981EP0039398A2 Sheet stacking apparatus including an aligner
11/11/1981EP0039361A1 Low gloss pressure fusing roll.
11/10/1981US4299902 Liquid phase photoconductography
11/10/1981US4299901 Method of development
11/10/1981US4299480 Mirror scanner synchronized with moving folded document plane
11/10/1981US4299478 Bound document apparatus for a copier
11/10/1981US4299477 Job recovery enhancement in computer fanfold reproduction
11/10/1981US4299475 Scanning method and apparatus applicable to variable magnification copying machines
11/10/1981US4299474 Component mounting apparatus useful for compact copiers
11/10/1981US4299473 Electrophotographic copying machine using a thick sheet of small size as a transfer sheet
11/10/1981US4299380 Sheet feed apparatus
11/10/1981CA1112289A2 Copy finisher
11/04/1981EP0038916A2 Xerographic roll fuser
11/04/1981EP0038825A1 Centrifugal clamp on a high speed print drum.
11/03/1981US4298669 Electrophotographic process and apparatus
11/03/1981US4298666 Coated open-celled microporous membranes
11/03/1981US4298279 Copying apparatus having an original feeding mechanism
11/03/1981US4298277 Grooved vacuum belt document handling system
11/03/1981US4298276 Cassette type roll sheet feeding apparatus
11/03/1981US4298275 Radially varying transmission filter for wide angle copying device
11/03/1981US4298274 Variable density filter for a multi-magnification copying device
11/03/1981US4298271 Scanning and projecting device
11/03/1981US4298270 Electrographic apparatus
11/03/1981US4298268 Method and device for cleaning photosensitive screen in an image forming apparatus
11/03/1981US4297972 Development system
11/03/1981US4297970 Developing apparatus
11/03/1981US4297969 Magnetic powder transporting device
11/03/1981CA1111898A1 Copy production machine having a duplex copy mode
11/03/1981CA1111896A1 Testing copy production machines
11/03/1981CA1111637A1 Developing apparatus
10/1981
10/28/1981EP0038522A1 Vacuum document feeder
10/28/1981EP0038497A2 Method of imaging an electrophotographic member and apparatus for carrying out the method
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