Patents
Sitemap › G03 - Photography; Cinematography; Analogous techniques using waves other than optical waves; Electrography; Holography › G03G - Electrography; Electrophotography; Magnetography › G03G 21 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge
Patents for G03G 21 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge (34,276)
02/1982
02/09/1982US4314756 Cleaning device
02/09/1982US4314754 Image forming apparatus
02/09/1982CA1118009A1 Protected document and method of making same
02/09/1982CA1117701A1 Fixed stapler head
02/03/1982EP0044919A1 Xerographic machine employing photoconductive imaging belt
02/02/1982US4314334 Serial data communication system having simplex/duplex interface
02/02/1982US4314018 Cleaning process for an electrostatic copying apparatus
02/02/1982US4313674 Cleaning apparatus for copying or the like
02/02/1982US4313673 Duplex operation in a reproduction machine
02/02/1982US4313671 Method and apparatus for controlling image density in an electrophotographic copying machine
02/02/1982CA1117617A1 Reproduction machine with paper path detection diagnostics
01/1982
01/27/1982EP0044674A2 Apparatus for maintaining a moving belt in lateral alignment
01/26/1982US4312589 Charge density control for an electrostatic copier
01/26/1982US4312587 Image forming apparatus
01/19/1982US4311780 Electrophotographic process and apparatus of two revolutions/copy, wet developing type
01/19/1982US4311778 Electrophotographic method
01/19/1982CA1116727A1 Distributed microprocessor control system for a copier/duplicator
01/19/1982CA1116686A1 Countdown and start mechanism
01/13/1982EP0043568A2 Method of aggravating or undoing the normal photocopying or reproducing capability of a paper to be inscribed or printed
01/12/1982US4310236 Copy sheet alignment for flash-on-the-fly copiers
01/12/1982US4310235 Job programming
01/12/1982US4310180 Protected document and method of making same
01/12/1982US4310153 Electrostatographic apparatus comprising sheet sensors
01/12/1982CA1116228A1 Bearing arrangements
01/11/1982EP0038825A4 Centrifugal clamp on a high speed print drum.
01/05/1982CA1115748A1 Electrophotographic toner removal brush and method of making same
12/1981
12/30/1981EP0042476A1 Electrophotographic copier including charge erase device
12/29/1981US4307958 Printing machine having immediate duplexing capabilities
12/29/1981US4307957 Paper jam detecting device for use in an electrophotographic copying machine
12/29/1981CA1115334A1 Electrographic element provided with electrical connection means
12/29/1981CA1115332A2 Apparatus for cleaning photosensitive member
12/29/1981CA1115330A1 Duplex system and method for pre-collation copiers
12/29/1981CA1115329A1 Dynamic reference for an image quality control system
12/29/1981CA1115327A1 Electrophotographic document copier machine with modular paper path assembly
12/29/1981CA1115301A1 Duplex/simplex precollation copying system
12/23/1981EP0042050A2 Electrophotographic copier including copy sheet detach detector
12/22/1981US4306803 Microprocessor and control apparatus in a photocopier
12/16/1981EP0041602A2 Electrophotographic copier and method for producing copies in booklet form
12/15/1981US4305654 Apparatus for controlling image formation
12/15/1981US4305653 Scanning diagnostics
12/15/1981US4305652 Merging of information in a copier-printer system
12/10/1981WO1981003557A1 Document copier with automatic image quality control
12/09/1981EP0041301A1 Copying apparatus suitable for producing duplex copies from simplex originals
12/09/1981EP0041198A1 Device for the removal of developing liquid from a recording material
12/08/1981US4304486 Automatic bias and registration control system for electrophotographic copier
12/08/1981US4304026 Cleaning apparatus for a xerographic reproduction machine
12/08/1981CA1114012A1 Digitally regulated power supply for use in electrostatic transfer reproduction apparatus
12/08/1981CA1114010A1 Copy production machines having job separation capabilities
12/08/1981CA1114003A1 Duplex reproduction machine
12/01/1981US4303948 Image transcribing system
12/01/1981US4303334 Heat regulator for the fusing device in an electrostatic copier
12/01/1981US4303331 Magnet for use in a magnetic brush development system
12/01/1981US4303307 Copy security system
11/1981
11/24/1981US4302096 Graphic forms overlay apparatus
11/18/1981EP0040095A2 A magnetic brush cleaning system
11/17/1981US4300710 Continuous form feeder
11/10/1981US4299476 Image forming process and apparatus therefor
11/10/1981US4299474 Component mounting apparatus useful for compact copiers
11/10/1981CA1112290A1 Apparatus for cleaning photosensitive member
11/04/1981EP0038825A1 Centrifugal clamp on a high speed print drum.
11/03/1981US4298669 Electrophotographic process and apparatus
11/03/1981US4298278 Device for detachably attaching a master sheet to a drum
11/03/1981US4298270 Electrographic 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
10/1981
10/27/1981US4297715 Electrostatic recording apparatus
10/27/1981US4297029 Apparatus and method for diagnostic entry
10/27/1981US4297026 Cleaning apparatus for copy machines
10/27/1981US4297025 Document feeder system having a suspending/commencing mode
10/27/1981US4297021 Powder material transportation apparatus
10/21/1981EP0038224A2 Composite material for ozone removal
10/21/1981EP0038220A2 Electrostatic copying apparatus
10/21/1981EP0038207A2 Apparatus for controlling the lateral alignment of a belt and electrostatographic printing machines and document handlers incorporating same
10/20/1981US4295734 Filter assembly for collecting used toner of electrophotographic copying machine
10/20/1981US4295239 Apparatus for removing residual toner
10/20/1981CA1111100A1 Electrostatic printing machine with slidable carriage for components
10/15/1981WO1981002936A1 Copy contrast and density control
10/13/1981US4294903 Process for electrostatically developing and pressure-fixing a reversed image including charge dissipation prior to fixing
10/13/1981US4294536 Automatic control of copier copy contrast and density for production runs
10/13/1981US4294535 Electrostatic copying apparatus
10/13/1981CA1110691A1 Copy production machines
10/07/1981EP0037248A2 Method and device for recycling developing material
10/06/1981US4292924 Magnetic brush apparatus
09/1981
09/30/1981EP0036469A2 Process for the manufacture of a sliding layer on the surface of the aluminium layer of a recording substrate
09/29/1981CA1109926A1 Electrostatic printer brush cleaner using vacuum and air jets
09/23/1981EP0036304A2 A reproduction machine for automatically copying different documents differently
09/23/1981EP0036290A1 Apparatus for cleaning particles from a surface
09/22/1981US4291341 Composite recording apparatus for recording information from different information sources
09/22/1981CA1109550A1 Copier/collator with extended collate functions
09/15/1981CA1109158A1 Non-volatile storage module for a controller
09/09/1981EP0035404A2 An electrophotographic reproducing machine
09/09/1981EP0035297A1 Reproduction apparatus provided with a cassette for a finite belt
09/09/1981EP0035170A1 Electrostatic copying apparatus
09/08/1981US4288514 Method for controlling image formation in electrophotography by pre-exposure step
09/08/1981CA1108732A1 Maintenance circuits and methods for copy production machines
09/01/1981US4287461 Motor driving system
09/01/1981US4286865 Electrophotographic copying apparatus for the production of multiple copies from a single latent electrostatic image
09/01/1981US4286861 Electrostatic copying process and apparatus
09/01/1981US4286706 Belt tracking system
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