| Patents for G03G 21 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge (34,276) |
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| 05/26/1987 | US4668076 Electrostatic copying apparatus with unitized components for ease of maintenance |
| 05/26/1987 | US4668072 Copier having a detachable photoreceptor unit |
| 05/21/1987 | DE3639385A1 Cleaning apparatus for an electrostatic copying device |
| 05/19/1987 | US4666286 Apparatus for scanning an original |
| 05/19/1987 | US4666285 Electrostatic copying apparatus |
| 05/19/1987 | US4666283 Electrostatic copying apparatus |
| 05/13/1987 | EP0221518A2 Biased scavenging grid for electrographic apparatus |
| 05/13/1987 | EP0221484A2 Magnification selecting device |
| 05/13/1987 | EP0221328A2 Method and apparatus for producing duplex copy sets from a duplex original set |
| 05/13/1987 | EP0221281A1 Device for purging a developer mixture containing a magnetic component from the developer unit of a non-mechanical printing or copying machine |
| 05/12/1987 | US4664995 Wear resistance |
| 05/12/1987 | US4664505 Electrostatic image reproducing apparatus |
| 05/12/1987 | CA1221585A1 Composite film for protecting documents from being reproduced |
| 05/06/1987 | EP0220915A1 Toner recovery device |
| 05/06/1987 | EP0220663A2 Improved print engine for color electrophotography |
| 05/05/1987 | US4663259 Electrophotographic photosensitive member and image forming process using the same |
| 05/05/1987 | US4662740 Electrophotographic device |
| 05/05/1987 | US4662739 Method of controlling copying machine operation |
| 05/05/1987 | US4662738 Electronic instrument |
| 05/05/1987 | US4662737 Developing color display device of copying machine |
| 04/28/1987 | US4661859 Pulse width modulation greyscale system for halftone printer |
| 04/28/1987 | US4660963 Auto duplex reproduction machine |
| 04/28/1987 | US4660962 Cleaning device |
| 04/28/1987 | US4660960 Imaging agent supply and recovery tank of electronic imaging device |
| 04/28/1987 | US4660824 Device for collating sheets |
| 04/28/1987 | US4660505 Developing apparatus |
| 04/22/1987 | EP0219244A2 Machine shut-down control |
| 04/21/1987 | US4659212 Cleaning apparatus |
| 04/21/1987 | US4659210 Copying apparatus |
| 04/21/1987 | US4659208 Method and mechanism for preventing misoperation of dual mode copying machine |
| 04/21/1987 | US4659207 Copying method and apparatus for independently scanning two parts of an original document |
| 04/21/1987 | US4659206 Photoconductive drum device for electrostatic copying machines or the like |
| 04/16/1987 | DE3602563C1 Security paper with optically active structures generating a moiré effect |
| 04/15/1987 | EP0218041A1 Improvement in image-forming apparatus |
| 04/14/1987 | US4657380 Copying machine |
| 04/14/1987 | US4657376 Image forming apparatus in which an image forming unit and a document feeding unit are alternately operated |
| 04/14/1987 | US4657371 Electrophotographic copying apparatus and process |
| 04/14/1987 | US4657369 Disposable photoconductive belt assembly for a printer or a copier |
| 04/08/1987 | EP0217173A1 Toner collecting apparatus |
| 04/07/1987 | US4655582 Automatic duplex electrophotographic copying machine |
| 04/07/1987 | US4655581 Copying apparatus |
| 04/07/1987 | US4655578 Reproducing apparatus cartridge mounting assembly |
| 04/01/1987 | EP0216560A1 Mounting structure for security strip |
| 04/01/1987 | EP0216093A1 Non-contact developer seal |
| 03/31/1987 | US4654286 Controlling light spectra in continuous copying cycle |
| 03/31/1987 | US4653899 Image forming apparatus with area selection and preservation functions |
| 03/26/1987 | DE3631129A1 Feed device for originals |
| 03/26/1987 | DE3628924A1 Electrophotographic copier having a device for steplessly changing scale |
| 03/24/1987 | US4652510 Method for forming negative and positive images in electrophotographic process |
| 03/24/1987 | US4652115 Print engine for color electrophotography |
| 03/24/1987 | US4652114 Electrophotographic copying apparatus and process |
| 03/24/1987 | US4652112 Compact console electrographic reproduction apparatus |
| 03/24/1987 | US4652111 Electrostatic recording apparatus |
| 03/17/1987 | US4650317 Image forming apparatus with a unidirectional magnification function |
| 03/17/1987 | US4650313 Duplex copying method |
| 03/17/1987 | US4650312 Residual toner removal and collection apparatus |
| 03/17/1987 | US4650311 Compact cleaning system for electrophotographic copying apparatus utilizing electrostatically active belt |
| 03/11/1987 | EP0213745A1 Printing apparatus |
| 03/10/1987 | US4649402 Electrographic stylus recording apparatus |
| 03/10/1987 | US4648709 Method and apparatus for producing transparent foil copies |
| 03/10/1987 | US4648705 Cleaning device |
| 03/04/1987 | EP0212685A1 Contact fixing device |
| 03/03/1987 | US4647950 Recording apparatus |
| 03/03/1987 | US4647946 Laser beam recorder having synchronized scanner and drum operations |
| 03/03/1987 | US4647190 Copier for photographic originals having different sizes |
| 03/03/1987 | US4647189 Electrophotographic copying machine with variable magnification |
| 03/03/1987 | US4647186 Biased scavenging grid for electrographic apparatus |
| 03/03/1987 | US4647183 Document-conveying copying machine |
| 03/03/1987 | US4647178 Unit-type copying machine |
| 03/03/1987 | US4647177 Electrophotographic copier |
| 02/25/1987 | EP0211464A1 Copying device provided with adjustable margining means |
| 02/25/1987 | CN86104959A Cleaning device for monochromatic copying machine |
| 02/24/1987 | US4646330 Preset counter apparatus for copying machines and the like |
| 02/17/1987 | US4643561 Control system for an electrophotographic printing machine |
| 02/17/1987 | US4643560 Apparatus and method for synchronizing exposure of a document onto a photosensitive member |
| 02/17/1987 | CA1218105A1 Apparatus and method for electrophotographically producing copy having continuous-tone and other content |
| 02/10/1987 | US4641956 Extended nip cleaning system |
| 02/10/1987 | US4641954 Apparatus for forming an image on one side of a record medium and in another mode to form images on both sides thereof |
| 02/10/1987 | US4641953 Image forming apparatus |
| 02/10/1987 | US4641951 Method and apparatus for electrophotographically reproducing a desired portion of an original on copying paper |
| 02/10/1987 | US4641948 Method of and device for preventing disturbance of unfixed visible image |
| 02/10/1987 | US4641947 Housing apparatus |
| 02/04/1987 | EP0210752A2 Display device |
| 02/03/1987 | US4641158 Electrophotographic apparatus |
| 02/03/1987 | US4640882 Image forming method of negative latent images using silica particles |
| 02/03/1987 | US4640608 Cleaning method for use in electrophotography |
| 02/03/1987 | US4640599 Method and apparatus for neutralizing residual charge on a photoconductive surface |
| 01/28/1987 | EP0209858A2 Variable magnification copying apparatus |
| 01/27/1987 | US4639126 Method for producing duplex copy sets from a duplex original set |
| 01/27/1987 | US4639124 Cleaning system for a multicolor electrophotographic printing machine |
| 01/27/1987 | US4639123 Cleaning device |
| 01/27/1987 | US4639122 Control for retracting the cleaning blade of a reproduction or printing machine when the machine is not in use |
| 01/27/1987 | US4639120 Independent dual electrophotographic copying machine |
| 01/27/1987 | US4639119 Process kit and an image formation apparatus using the process kit |
| 01/27/1987 | US4639117 Recording image density control method for electrophotography |
| 01/20/1987 | US4638397 Self-biased scorotron and control therefor |
| 01/20/1987 | US4637711 Process for rolling a drum with a photosensitive film |
| 01/15/1987 | WO1987000389A1 Device for wiping out electrostatic charges |
| 01/14/1987 | EP0208340A2 Card operated copying machine |
| 01/14/1987 | EP0208324A2 Apparatus for producing tabs |