Patents for G03G 21 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge (34,276)
10/1979
10/02/1979CA1063665A1 Cleaning, transporting and storing apparatus and reproducing machine
09/1979
09/25/1979US4168901 Developer housing sealing device for electrophotography
09/25/1979CA1063175A1 Electrometer apparatus for reproduction machines
09/25/1979CA1063158A1 Document reproduction machine having a duplex copy mode
09/25/1979CA1063157A1 Electrophotographic halftone printing machine employing a phase screen
09/25/1979CA1063156A1 Multi-process control system for an electrophotographic printing machine
09/19/1979EP0004162A1 Document handling apparatus for a copier
09/18/1979US4168088 Protected document and method of making the same
09/11/1979US4167325 Electrographic recording apparatus
09/11/1979CA1062325A1 Photoconductor drum cleaning apparatus
09/04/1979US4166690 Digitally regulated power supply for use in electrostatic transfer reproduction apparatus
09/04/1979US4166615 Means for determining difference in copy sheet transportation states for an electrostatic reproduction machine
09/04/1979CA1061909A1 Programmable controller for controlling reproduction machines
09/04/1979CA1061854A1 Duplicating system
08/1979
08/21/1979US4165173 Toner removing means for photosensitive drums for electrophotography
08/21/1979US4165172 Drum cleaning system for electrophotographic apparatus
08/21/1979US4165171 Electrographic apparatus and process
08/21/1979US4165170 Control system
08/21/1979US4165169 Photosensitive drum for electrographic apparatus
08/21/1979US4165168 Electrophotographic document copier machine with modular paper path assembly
08/21/1979US4165069 Copier having removable paper feed module
08/14/1979CA1060532A1 Dual purpose document handling system
08/14/1979CA1060531A1 Document feeding apparatus and latching mechanism
08/07/1979US4163897 Automatic copy recovery
08/07/1979CA1060084A1 Apparatus for producing duplex collated copies
07/1979
07/31/1979US4162844 Reproduction machine with duplex image shift
07/31/1979CA1059571A2 Image forming apparatus and method
07/31/1979CA1059569A1 Control system for high speed copier/duplicators
07/25/1979EP0003051A1 Method of mounting printing cylinders utilizing flexible metal sleeves and printing apparatus using such a printing cylinder
07/24/1979US4162396 Testing copy production machines
07/24/1979CA1059202A1 Scavanging apparatus for an electrostatic copier
07/24/1979CA1059201A1 Background removal apparatus
07/17/1979US4161362 Document coding
07/17/1979CA1058687A1 Cleaning web for electrophotographic copier
07/17/1979CA1058686A1 Belt type sensitive member unit
07/17/1979CA1058685A1 Process for the electrographic recording of images
07/17/1979CA1058395A1 Split developer housing
07/11/1979EP0002915A1 Electrophotographic machine
07/11/1979EP0002914A1 Method of operating a xerographic copier of the transfer type
07/11/1979EP0002913A1 Recirculating sheet feeder and copying or duplicating machine having such feeder
07/03/1979CA1057812A1 Electrostatic copier for copying selected portions of original
06/1979
06/27/1979EP0002567A1 Document reproduction system
06/26/1979CA1057201A1 Electronic halftone imaging system
06/19/1979US4158886 Operator console for a reproduction machine
06/19/1979US4158499 Buffer device for the scanning mechanism of an electrostatic copier
06/19/1979US4158498 Blade cleaning system for a reproducing apparatus
06/12/1979US4157822 Document feeder with recirculation and unloading
06/12/1979CA1056443A1 Synchronizing control apparatus for electrophotographic apparatus utilizing digital computer
06/12/1979CA1056442A1 Optical printer character generator
06/05/1979US4157260 Screen photosensitive body for electrographic apparatus
06/05/1979CA1056061A1 Limitless sorter
05/1979
05/29/1979CA1055560A1 Construction of electrophotographic copying machines with a cleaning unit for photosensitive surface
05/22/1979US4156133 Reproduction machine with paper path detection diagnostics
05/22/1979US4155639 Flexible belt xerographic copier
05/16/1979EP0001886A1 A system for charging the photoconductor device of a xerographic machine
05/15/1979US4154524 Copying apparatus for thick and sheet originals
05/15/1979US4154522 Electrostatographic apparatus comprising improved drum cleaning means
05/15/1979US4154521 Air flow line system for image forming apparatus
05/08/1979CA1054211A1 Process for electrographic image production and an apparatus for carrying out this process
05/01/1979US4152067 Blade cleaning device
04/1979
04/24/1979US4150894 Spectral analysis
04/18/1979EP0001413A1 Method of removing residual toner from surface of photoconductive member for use in electrostatic copying apparatus of the transfer type
04/03/1979US4148042 Electrographic copier with one-piece belt and styli
04/03/1979US4147541 Electrostatic imaging member with acid lubricant
04/03/1979US4147128 Apparatus for cleaning and developing dielectric receptor sheets
03/1979
03/20/1979US4145137 Electrophotographic reproducing machine blade cleaning apparatus
03/20/1979CA1051087A1 Biasing arrangement for a corona discharge device
03/20/1979CA1051083A1 Shutterless camera system
03/13/1979US4143963 Device for controlling rotations of photosensitive drum for electrographic apparatus
03/06/1979US4143310 Apparatus for positioning
03/06/1979US4143118 Apparatus and method for ozone reduction in electrostatographic reproduction equipment
03/06/1979US4142889 Variation of the amount of light during exposure to improve image formation
03/06/1979US4142269 Cleaning device
02/1979
02/27/1979US4142165 Electrostatic copying machine comprising improved magnetic brush developing-cleaning unit
02/27/1979US4141648 Photoconductor charging technique
02/27/1979US4141546 Mini-collator/sorter
02/20/1979US4140389 Toner removing apparatus
02/20/1979US4140388 Drum cleaning apparatus for electrostatic copying machine
02/20/1979US4140387 Apparatus for producing collated copies from two sided originals
02/20/1979US4140310 Feeder mechanism at an exposure station of a photoprinting machine
02/20/1979CA1049088A1 Triboelectric filter and method of using it in an electrophotographic printer
02/13/1979US4139300 Copying apparatus with variable stop position
02/13/1979US4139298 Copying apparatus capable of producing copies differing in size from originals
02/13/1979CA1048591A1 Photocopy machine with photoconductor belt and cartridge for photocopying
02/06/1979CA1048102A1 Electrophotographic device
01/1979
01/30/1979US4137565 Direct memory access module for a controller
01/30/1979US4136862 Paper orientation for duplexing and collating
01/23/1979US4135811 Electrophotographic apparatus
01/16/1979US4134673 Dual brush cleaning apparatus
01/16/1979US4134669 Drum support for electrostatic printer
01/16/1979US4134341 Duplicating apparatus
01/16/1979CA1046575A1 Electrostatic or xerographic copying and duplicating machine
01/09/1979US4133610 Optimum preclean corona current for eliminating the accumulation of contaminants from developers
01/02/1979US4132476 Electro-photographic copier with anti-spill arrangement
01/02/1979US4132401 Copier document sensing and control system
01/02/1979CA1045711A1 Recorder for copiers
01/02/1979CA1045694A1 Last copy detection
12/1978
12/26/1978US4131942 Non-volatile storage module for a controller
12/26/1978US4131359 Sensitive medium cleaner for use in electrophotographic copying machine
12/20/1978EP0000045A1 Electrophotographic copying machine comprising a device for erasing residual electrostatic images