Patents for G03G 21 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge (34,276) |
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06/21/1988 | US4752810 Cleaning apparatus for charge retentive surfaces |
06/21/1988 | US4752805 Toner recycling unit |
06/21/1988 | US4752804 Multicolored image forming apparatus in which toner images are successively transferred from a plurality of image bearing members to a transfer material |
06/16/1988 | DE3740869A1 Paper transporting device |
06/15/1988 | EP0271090A2 Recording apparatus |
06/14/1988 | US4751552 Image forming apparatus |
06/14/1988 | US4751550 Image forming apparatus capable of copying an original in a plurality of image forming modes |
06/14/1988 | US4751484 Drum unit exchange time indicating device for image forming apparatus |
06/14/1988 | CA1238077A1 Cleaning apparatus and method for a polychromatic electrographic copier |
06/08/1988 | EP0270038A2 A copying machine |
06/07/1988 | US4750019 Electrophotographic apparatus |
06/07/1988 | US4750018 Pre-transfer copy sheet cleaning apparatus |
06/07/1988 | US4750015 Waste toner container detector |
06/01/1988 | EP0269131A2 Lighting control method and a lighting control apparatus of a light source in an image forming apparatus |
06/01/1988 | EP0269130A2 Editing area setting method and editing area setting apparatus in an image forming apparatus |
06/01/1988 | EP0268650A1 Optional output for test patches. |
05/31/1988 | US4748481 Housing for copier separable into upper and lower frames |
05/31/1988 | US4748480 Controlled authentic document recognition equipment |
05/31/1988 | US4748479 Image forming apparatus capable of displaying a capacity and/or a remaining quantity of sheets of paper |
05/31/1988 | US4748474 Image forming method and apparatus using developer having toner generally from one to five microns in size and a lubricant |
05/31/1988 | US4748470 Automatic duplex electrophotographic copying machine |
05/31/1988 | CA1237252A1 High speed duplicator with stapler apparatus and staple loading arrangement |
05/25/1988 | EP0268263A2 Automatic document feeding device for an electrophotographic copying apparatus |
05/24/1988 | US4746956 Microfilm printer apparatus and method |
05/24/1988 | US4746950 Color copier |
05/18/1988 | EP0267689A2 An apparatus for the formation of images |
05/17/1988 | US4745491 Image formation apparatus capable of designating a recording area |
05/17/1988 | US4745441 Copying machine capable of forming filing margins on both sides of copy paper |
05/17/1988 | US4745440 Image forming apparatus |
05/17/1988 | US4745438 Automatic copier show-around erase system |
05/17/1988 | US4745436 Copying machine |
05/11/1988 | EP0266960A2 Direct electrostatic printing apparatus and printhead cleaning structure therefor |
05/11/1988 | CN87203106U Reflector of flash printer for making print plate |
05/10/1988 | US4743947 Copying machine for producing margins of constant width |
05/10/1988 | US4743945 Copying apparatus which forms images plural times on the same copy paper |
05/10/1988 | US4743942 Magnetic developer conveying device |
05/10/1988 | US4742797 Tear drop seal |
05/03/1988 | US4742483 Laser printer maintenance system |
05/03/1988 | US4741942 Electrostatic charging and cleaning brushes |
04/27/1988 | EP0264902A2 Offset electrostatic imaging process |
04/27/1988 | EP0264852A2 Electronic copying machine |
04/26/1988 | US4740818 Electrophotographic reproduction apparatus and method with selective screening |
04/26/1988 | US4740814 Preview system for an electrophotographic printing machine |
04/26/1988 | US4740767 Pivoting developing devices |
04/26/1988 | CA1235730A1 Optical system for scanning and flash exposing of document |
04/26/1988 | CA1235729A1 Document scanning drum and flash exposure copier |
04/20/1988 | EP0264190A1 Method for setting and indicating the density of an image in image forming apparatus |
04/19/1988 | US4739377 Confidential document reproduction method and apparatus |
04/19/1988 | US4739371 Reproduction machine |
04/19/1988 | US4739370 Cleaning device |
04/19/1988 | US4739367 Image forming apparatus having a control means for effecting control of a preliminary processing of image formation |
04/19/1988 | US4739230 Control device for controlling motor speed without hunting |
04/19/1988 | US4738901 Method and apparatus for the prevention of unauthorized copying of documents |
04/12/1988 | US4737856 Image processing apparatus |
04/12/1988 | US4737817 Electrophotographic apparatus |
04/12/1988 | US4737431 Negative-electrification finely-divided toner in use for electrophotography |
04/12/1988 | US4736937 Automatic document feeder |
04/12/1988 | CA1235175A1 Production of developed electrostatic images |
04/07/1988 | WO1988002505A1 Device enabling the clean replacement of a toner container in a toner transfer system of a non-mechanical printer or copier |
04/07/1988 | WO1988002504A1 Multi-purpose toner container for non-mechanical printers and copiers |
04/07/1988 | WO1988002503A1 Device for filling toner from a transfer container into a toner storage container |
04/07/1988 | WO1988002502A1 Non-mechanical printing or copying unit with an exposure system arranged in the development region |
04/06/1988 | EP0262640A2 Image-forming machine |
04/06/1988 | CN87205109U Ozone-purifying device for duplicator |
04/05/1988 | US4736255 Recording apparatus |
03/30/1988 | EP0261975A2 Document feeders |
03/30/1988 | EP0261636A2 Cleaning unit in electrophotographic copier |
03/30/1988 | EP0261511A2 Elastic rotatable member and fixing apparatus using same |
03/30/1988 | EP0261364A1 Composite copying apparatus |
03/29/1988 | US4734789 Editing copying machine |
03/29/1988 | US4734741 Particulate material cleaning apparatus |
03/29/1988 | US4734739 Image forming apparatus with function permitting key entry during waiting time |
03/24/1988 | WO1988002137A1 Document treating method for hindering the photocopying reproduction, and products for implementing such method |
03/22/1988 | US4733275 System for storage and printing a plurality of images |
03/22/1988 | US4733274 Copying apparatus |
03/22/1988 | US4733272 Filter regeneration in an electrophotographic printing machine |
03/22/1988 | US4733269 Control system for color copier |
03/22/1988 | US4733268 Voltage control bar for electrophotography |
03/17/1988 | DE3729762A1 Elektrostatische aufzeichnungseinrichtung Electrostatic recording device |
03/16/1988 | EP0259839A2 Control unit of copying machines |
03/16/1988 | EP0259448A1 Liquid developer charge director control. |
03/16/1988 | EP0177567B1 Web tracking apparatus |
03/15/1988 | US4731638 Timing pulse generator for an electrophotographic printing machine |
03/15/1988 | US4731636 Liquid carrier recovery system |
03/15/1988 | US4731631 Vertically oriented photoconductive drum |
03/10/1988 | WO1988001404A3 Copier operable in an insert mode |
03/08/1988 | US4730205 Toner collecting apparatus |
03/08/1988 | US4730204 Copying machine with automatic original feeding device |
03/08/1988 | CA1233871A1 Processing station for an electrophotographic information printer |
03/08/1988 | CA1233870A1 Electrophotographic information printer |
03/01/1988 | US4728982 Image forming apparatus |
02/25/1988 | WO1988001404A2 Copier operable in an insert mode |
02/25/1988 | WO1988001288A1 Marking of articles with photochromic compounds |
02/23/1988 | US4727402 Automatic copier signature set production |
02/23/1988 | US4727401 Two-up automatic document feeder for simplex to duplex copying |
02/23/1988 | US4727396 Zoom type copier |
02/23/1988 | US4727385 Image forming apparatus including means for dehumidifying |
02/10/1988 | EP0255713A2 An electrographic apparatus |
02/10/1988 | EP0255676A1 Offset electrostatic printer and imaging process utilizing dehumidified air |
02/09/1988 | US4724462 Copying machine display control device |