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