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)
12/1978
12/19/1978US4130354 Reproduction machine having duplex job recovery capabilities
12/12/1978US4129377 Variable magnification copying apparatus
12/12/1978CA1044306A1 Cleaning material from a support surface
12/12/1978CA1044304A1 Method and apparatus for detecting data on a photographic recording medium
12/05/1978US4128756 Count control apparatus
12/05/1978US4128330 Evaluation and copying of originals arranged in a strip
12/05/1978US4128329 Apparatus for producing bias voltage for use in electrophotographic copying machines
12/05/1978CA1043853A1 Cleaning material from a support surface
12/05/1978CA1043852A1 Cleaning material from a support surface
12/05/1978CA1043851A1 Cleaning material from a support surface
11/1978
11/28/1978US4127327 Apparatuses incorporating a composite support member
11/28/1978US4127083 Developer sealing device for xerographic copying machine
11/21/1978US4126455 Electrostatographic imaging process and related apparatus
11/21/1978US4126389 Scanning type variable magnification electrophotographic copying machine employing copy paper storage roll
11/21/1978US4126388 Electrophotocopying machine of electrostatic latent image transfer type
11/14/1978US4125325 Automatic duplex control system for a reproduction machine
11/14/1978US4125323 Electrophotographic copying machine of a multi-size copying type
11/14/1978CA1042354A1 Printer
11/07/1978US4124294 Light emission regulation device
10/1978
10/31/1978USRE29818 Toner-reclaiming system
10/31/1978US4123155 Copy production machine having a duplex copy mode
10/31/1978US4123154 Combined corona generator and imaging surface cleaner
10/24/1978US4121947 Exposure to light, charging, vibration
10/24/1978CA1041213A1 Programmable controller for controlling reproduction machines
10/17/1978US4120579 Imaging system for a photocopying device
10/17/1978US4120578 Continuously variable reduction scanning optics drive
10/17/1978CA1040580A1 Compact sorting apparatus
10/10/1978US4120034 Programmable controller for controlling reproduction machines
10/10/1978US4119373 Electrographic apparatus and method for using arsenic selenide as the photoconductor
10/10/1978US4119059 Mounting arrangement for component elements of a copying machine
10/03/1978US4118122 Method of rendering objects uncopyable by photocopy processes
10/03/1978US4118117 Electrophotographic optical scanning system
09/1978
09/26/1978US4116561 Copying apparatus
09/26/1978US4116558 Duplex system and method for pre-collation copiers
09/26/1978US4116557 Electrophotographic copying apparatus
09/26/1978US4116556 Electrophotographic copying apparatus
09/19/1978US4114998 Copying machine with removable photosensitive drum
09/19/1978US4114871 Collation controls
09/19/1978CA1038946A1 Multi-mode billing system controlled by copy size and document original size
09/12/1978US4113376 Cleaning apparatus for reproducing machine
09/12/1978US4113374 Electrophotographic copying apparatus
09/12/1978CA1038442A1 Continuous blade cleaner
09/05/1978US4111546 Ultrasonic cleaning apparatus for an electrostatographic reproducing machine
09/05/1978US4111545 Vibrating blade cleaner
09/05/1978CA1038014A1 Duplicator processor
09/05/1978CA1037985A1 Web tracking apparatus
09/05/1978CA1037764A1 Accelarating aging method
08/1978
08/29/1978US4110035 Cleaning system for an electrophotographic printing machine
08/29/1978US4110034 Drum cleaning apparatus for electrostatic copying machine
08/29/1978US4110033 Control system for copying apparatus
08/29/1978US4110032 Copy production machines having supply sheet pick retry
08/29/1978US4110026 Discharger apparatus for photoconductors
08/29/1978US4110025 Duplex electrostatic copying machine
08/29/1978US4109903 Fluidic feeding of documents to an exposure station
08/29/1978CA1037544A1 Reproducing apparatus and process for duplex imaging in a single pass
08/29/1978CA1037543A1 Sheet reversing apparatus and a duplex reproducing apparatus employing same
08/29/1978CA1037542A1 Copier/duplicator system
08/22/1978US4109313 Programmable controller for controlling reproduction machines
08/22/1978US4108546 Cleaning apparatus and electrostatographic reproducing machine
08/22/1978CA1037106A1 Copier fuser protector
08/22/1978CA1037099A1 Printing apparatus
08/15/1978US4107779 Programmable controller for controlling reproduction machines
08/08/1978US4105914 Presetting counter device
08/08/1978US4105327 Multiple reduction indicators for continuously variable reduction copier machines
08/01/1978US4104726 Programmable controller for controlling reproduction machines
07/1978
07/18/1978US4101218 Electronic copying apparatus
07/18/1978US4101215 Cleaning device for an electrostatic copier
07/11/1978US4100411 Biasing arrangement for a corona discharge device
07/11/1978US4099866 Focal adjustment on a single-focus lens in a continuously variable magnification system
07/11/1978US4099861 Contamination sensor
07/04/1978US4099150 Apparatus for producing duplex collated copies
06/1978
06/27/1978US4097140 Method and apparatus for cleaning toner in electrophotographic copying machines
06/20/1978US4095980 Drum cleaning method and apparatus for electrostatography
06/20/1978US4095979 Method and apparatus for producing duplex copies
06/20/1978US4095890 Xerographic copying apparatus
06/20/1978US4095887 Detector circuit for electrophotographic copier
06/20/1978US4095884 Exposure controlling apparatus for electrophotographic copying machine
06/20/1978US4095880 Extended range variable magnification reproduction machine
06/06/1978US4093369 Cleaning system
06/06/1978US4093368 Electrographic apparatus
05/1978
05/23/1978US4090787 Automatic copier mode controls
05/16/1978USRE29632 Electrophotographic device
05/16/1978US4089683 Liquid developer cleaning means
05/16/1978US4089602 Automatic shutdown system for electrophotographic apparatus
05/02/1978US4087171 Electrophotographic exposure and development system
05/02/1978US4087170 Electrostatic copying apparatus with combined charging transfer unit
04/1978
04/18/1978US4084901 Copying machine
04/18/1978US4084900 Jam detecting device in the electrophotographic copying machine
04/11/1978US4083633 Blade cleaning holder
04/11/1978US4083632 Multi-frequency screen
04/04/1978US4082456 Device for adjusting an original to be copied
04/04/1978US4082039 Duplicator control by area scanned coded master
03/1978
03/28/1978US4081212 System for electrostatically transferring powder images
03/21/1978US4080071 Exposure device of a copying machine
03/21/1978US4080059 Apparatus for cleaning a photosensitive member of an electrophotographic copying machine
03/14/1978US4078924 Imaging surface smoothing with roughened nickel foil
03/14/1978US4078791 Gate mechanism for a copier machine
03/14/1978US4078787 Automatic transfer from collate to noncollate modes of recirculating feeder and copier operation
03/07/1978US4077714 Copying apparatus
03/07/1978US4077713 Copying apparatus with moving belt for transferring images
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