| Patents for G03G 21 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge (34,276) |
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| 04/08/1980 | US4197002 Pneumatic system for supporting and steering a belt |
| 04/02/1980 | EP0009378A1 Image transcribing apparatus |
| 04/01/1980 | US4196476 Reproduction machine with selectively disclosable programs |
| 03/25/1980 | CA1074390A1 Sensitive medium cleaner for use in electrophotographic copying machine |
| 03/25/1980 | CA1074389A1 Cleaning blade |
| 03/20/1980 | WO1980000502A1 Electrophotographic copying machine |
| 03/20/1980 | WO1980000501A1 Carrier for image recording of the image thereon and a device for implementation of that method |
| 03/18/1980 | US4194221 Automatic multimode continuous halftone line copy reproduction |
| 03/18/1980 | US4194112 Presetting counter device |
| 03/18/1980 | US4193330 Copy machine with automatic roll supplied copy paper feeding and cutting apparatus and control circuitry |
| 03/11/1980 | US4192692 With amines and mercaptan |
| 03/11/1980 | US4192607 Apparatus for selectively copying documents from two different document feeders |
| 03/11/1980 | US4192604 Bias voltage source for applying a bias voltage on a magnetic brush means of an electrostatic printing apparatus |
| 03/11/1980 | US4192603 Replenishable photoconductor system |
| 03/11/1980 | CA1073516A1 Adaptive fuser controller |
| 03/11/1980 | CA1073515A1 Magnetic developer removal system |
| 03/11/1980 | CA1073514A1 Photoconductor support drum from photocopy machine |
| 03/05/1980 | EP0008381A1 Xerographic machine with means for replenishing the developer mix with virgin and used toner |
| 03/04/1980 | US4191465 Apparatus for producing simplex of duplex copies |
| 03/04/1980 | CA1073035A2 Electrophotographic device |
| 03/04/1980 | CA1073034A2 Electrophotographic device |
| 03/04/1980 | CA1073033A2 Electrophotographic device |
| 02/26/1980 | US4190359 Copier document handling system |
| 02/26/1980 | US4190354 Copier job recovery system |
| 02/26/1980 | US4190350 Distributed microprocessor control system for a copier/duplicator |
| 02/26/1980 | US4190348 Lead edge transfer switching |
| 02/19/1980 | US4189225 Electrophotographic apparatus |
| 02/19/1980 | CA1072171A1 Gas impingement and suction cleaning apparatus |
| 02/12/1980 | US4188668 Computer-controlled copier-printers |
| 02/12/1980 | US4188197 Particulate filtering |
| 02/12/1980 | US4187969 Fixed stapler head |
| 02/12/1980 | CA1071693A1 Control of photoconductor charge sources to facilitate photoconductor cleaning during runout |
| 02/12/1980 | CA1071692A1 Electrophotographic cleaning apparatus |
| 02/07/1980 | WO1980000195A1 Method for providing electrical connection means in an electrographic element |
| 02/06/1980 | EP0007564A1 Supporting plate for a band-like photoconducting recording material |
| 01/29/1980 | US4185910 Photoconductive member cleaning device using a magnetic brush for electrostatic copying machines |
| 01/29/1980 | US4185909 Cleaning method and device for electrophotographic machine |
| 01/29/1980 | US4185907 Support assembly for components of electrostatic copiers |
| 01/29/1980 | CA1070731A1 Technique for circumventing document coyping |
| 01/23/1980 | EP0007185A1 Copier control and record keeping apparatus |
| 01/22/1980 | US4184765 Copying apparatus with device for transporting sheetlike originals yet covering various originals for exposure |
| 01/22/1980 | US4184671 Automatic document handler in duplex copying machine |
| 01/22/1980 | CA1070370A1 Surface cleaning apparatus and method |
| 01/15/1980 | US4183660 Timing apparatus in a copier |
| 01/15/1980 | US4183658 Copying apparatus with imaging belt and image transfer via an intermediate support |
| 01/15/1980 | US4183657 Dynamic reference for an image quality control system |
| 01/15/1980 | US4183655 Cleaning means for image transfer unit in electrophotographic copying machines |
| 01/09/1980 | EP0006553A1 Method and apparatus for operating a heat source in a reproduction machine |
| 01/08/1980 | US4183089 Data communications system for a reproduction machine having a master and secondary controllers |
| 01/08/1980 | CA1069578A1 Construction of a photosensitive drum |
| 01/01/1980 | US4181425 Apparatus for cleaning photosensitive member |
| 01/01/1980 | US4181424 Method of and means for synchronously transferring original and copying paper for electrostatic photoduplication |
| 01/01/1980 | US4181422 Process and apparatus for developing and cleaning a charge image carrier |
| 12/25/1979 | US4180319 Copying arrangement |
| 12/25/1979 | US4180318 Multi-copying method and multi-copying apparatus |
| 12/25/1979 | CA1068764A Structure for applying release agent to a heated fuser roll structure |
| 12/25/1979 | CA1068762A Control arrangement for an electrostatographic reproduction apparatus |
| 12/18/1979 | US4179215 Recirculating document feeder |
| 12/18/1979 | US4179212 Demand publishing royalty accounting system |
| 12/13/1979 | WO1979001073A1 Reproducing apparatus |
| 12/11/1979 | US4178095 Abnormally low reflectance photoconductor sensing system |
| 12/11/1979 | US4178092 Electrophotographic copying apparatus with gas evacuating means |
| 12/04/1979 | US4176942 Electrophotographic copying apparatus |
| 12/04/1979 | US4176859 Non-counterfeitable documents |
| 12/04/1979 | CA1067563A1 Roughened imaging surface for cleaning |
| 11/27/1979 | US4175776 Counterfeit resistant document |
| 11/27/1979 | US4175774 Non-copying printed document and method of printing same |
| 11/27/1979 | US4175448 Electromechanical switching system |
| 11/27/1979 | CA1067131A1 Foreign object detector/brush cleaner |
| 11/20/1979 | CA1066758A1 Drum cleaning process and apparatus for electrophotography |
| 11/20/1979 | CA1066757A1 Electrophotographic apparatus with detachable photoconductive drum |
| 11/14/1979 | EP0005184A1 Electrophotographic copying machine including an automatic document feeder |
| 11/14/1979 | EP0005180A1 Electrophotographic copying machine including an automatic document feeder |
| 11/13/1979 | US4174172 Cleaning methods and apparatus for a photocopying device |
| 11/13/1979 | CA1066354A1 Corona generator for multicolor electrocopier |
| 11/13/1979 | CA1066347A1 Fuser roller positioning system for electro-static copiers |
| 11/13/1979 | CA1066346A1 Photoconductor cleaning stations |
| 11/13/1979 | CA1066044A1 Coated roll for magnetic brush development and cleaning systems |
| 11/06/1979 | US4173410 Method of duplex copying |
| 11/06/1979 | US4173408 Demand publishing royalty accounting system for an electrostatic copier |
| 11/06/1979 | US4173406 Electrical charge removing arrangement for removing charge from non-image bearing portions of photo-sensitive medium |
| 11/06/1979 | CA1065954A1 Reproduction machine service control |
| 11/06/1979 | CA1065953A1 Programmable controller for controlling reproduction machines |
| 10/31/1979 | EP0005043A1 An automatic document handler including a control system therefor |
| 10/30/1979 | US4172658 Image forming device of copying apparatus of the variable duplicate size type |
| 10/30/1979 | US4172655 Shingle sheet stacking for duplex copying |
| 10/30/1979 | US4172654 Apparatus for controlling the rotation of a photosensitive drum of an electrophotographic apparatus |
| 10/30/1979 | US4172303 Cleaning station |
| 10/23/1979 | US4171904 Image forming device of copying apparatus of the variable duplicate size type |
| 10/23/1979 | US4171901 Device for controlling advance and return movements of original table of electrostatic copying apparatus |
| 10/23/1979 | CA1065005A1 Squeeze roller retraction assembly |
| 10/23/1979 | CA1064712A1 Composition and method for repairing selenium photoreceptors |
| 10/17/1979 | EP0004828A1 Multifunction copying apparatus |
| 10/17/1979 | EP0004687A2 Xerographic copying apparatus for producing double sided copies |
| 10/09/1979 | US4170791 Serial data communication system for a reproduction machine |
| 10/09/1979 | US4170414 Document feed controls for copy production machines |
| 10/09/1979 | US4170413 Device for stabilizing and increasing contrast potential in an electrophotographic copier |
| 10/09/1979 | US4170349 Self-contained motor-driven collator deflector |
| 10/09/1979 | CA1064093A1 Electrophotographic apparatus having improved photoconductor regenerative structure and procedure |
| 10/03/1979 | EP0004451A1 A dual mode copier |