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)
12/1989
12/27/1989EP0348231A2 Image recording apparatus having toner reservoir
12/26/1989US4890135 Photoconductive drum cleaning apparatus
12/20/1989EP0346934A2 Image forming apparatus
12/20/1989EP0346454A1 Dual purpose cleaning apparatus.
12/20/1989EP0346450A1 Film belt loader package
12/19/1989US4888620 Process cartridge and image forming apparatus using the same
12/19/1989US4888615 Image forming apparatus for selective copying of segmented areas of an image
12/14/1989WO1989012260A1 Cleaning station
12/13/1989EP0345779A1 Electrophotographic apparatus and method
12/13/1989EP0345270A1 Play-free bearing installation for guide drums in printers or photocopiers.
12/12/1989US4887101 Image forming apparatus
12/06/1989EP0345089A2 Image formation apparatus
12/06/1989EP0345060A2 Image forming device
12/06/1989EP0345033A2 Image forming apparatus
12/06/1989EP0345010A2 Method and apparatus for use in transferring an image
12/06/1989EP0344930A1 Electrophotographic printer with developing unit employing two-component toning system
12/06/1989CN2048983U Waste powder regenerator for duplicator
12/05/1989US4885699 Data processing apparatus for editing, filing, and printing image data by means of visual observation of the data on a display screen
12/05/1989US4885613 Device applicable to an image recording apparatus for feeding a recording medium
12/05/1989US4885612 Cleaning device for an image forming apparatus
12/05/1989US4885221 Electrophotography apparatus and electrophtographic process for developing positive image from positive or negative film
12/05/1989US4884828 Security documents
11/1989
11/29/1989EP0343948A2 An electrophotographic printer
11/29/1989EP0343827A2 Initialisation of a fuser unit in an image-forming apparatus
11/28/1989US4884107 Image forming apparatus for blanking portions of a document
11/28/1989US4884096 Multiple color image forming apparatus
11/23/1989EP0343066A1 Copying machine control apparatus
11/23/1989EP0342968A2 Method for recording and reproducing information, apparatus therefor and recording medium
11/23/1989EP0342910A2 Photocopy monitoring system and method for monitoring copiers
11/23/1989EP0342716A2 Electrostatic copying apparatus
11/23/1989EP0342715A2 Electrostatic copying apparatus
11/23/1989EP0342714A2 Electrostatic copying apparatus
11/23/1989EP0342660A1 Waste toner collecting container provided with corona charger
11/23/1989EP0342596A2 Communication control device
11/23/1989EP0342368A2 Improved transfer medium cleaning station for use in an electrophotographic print engine
11/23/1989EP0342367A2 Improved fuser for use in an electrophotographic print engine
11/21/1989US4882778 Electronic load drive control apparatus
11/21/1989US4882604 Electronic machine having time measuring function
11/16/1989DE3915024A1 Informationen speichernde vorrichtung und verfahren zum systematischen entwurf einer derartigen vorrichtung Information storing apparatus and method for systematic design of such a device
11/15/1989EP0342060A2 Image processing apparatus
11/15/1989EP0341761A2 Copying machine in the form of an electrostatic photographic printer
11/15/1989EP0341667A2 Image-forming machine
11/14/1989US4881206 Memory device
11/14/1989US4881104 Image forming apparatus having a plurality of feed openings
11/14/1989US4881101 Device for setting operation modes of office equipment
11/09/1989DE3913613A1 Methods for regenerating a photoreceptor for electrophotography
11/08/1989EP0340997A2 Electrically insulating polymer matrix with conductive path formed in situ
11/07/1989US4879580 Image processing apparatus
11/07/1989US4879577 Method and apparatus for controlling the electrostatic parameters of an electrophotographic reproduction device
11/07/1989US4879575 Copying apparatus with provision for delayed reset in the event of paper exhaustion
11/07/1989US4879574 Copying apparatus having an automatic document feeder and at least two operation modes
11/07/1989US4879196 Electrophotographic method for reversal or positive-positive image formation
11/02/1989EP0339309A1 An image forming apparatus
11/01/1989CN1036844A Image forming apparatus with disassembly treating box
10/1989
10/31/1989US4878093 Dual roll cleaning apparatus for charge retentive surface
10/26/1989DE3912329A1 Picture producing device and method for imaging an original picture and a bar code
10/25/1989EP0338963A2 Toner concentration control method and apparatus
10/25/1989EP0338962A2 Method and apparatus for controlling the electrostatic parameters of an electrophotographic reproduction device
10/24/1989US4876609 Digital copier with a facsimile function
10/24/1989US4876577 Multi-component photoreceptor cartridge unit
10/24/1989US4876572 Image recording having a removable image forming case
10/17/1989US4875081 Electrophotographic device having a.c. biased cleaning member
10/17/1989US4875077 Image-forming machine
10/17/1989US4875075 Image reading device and image forming apparatus having same
10/17/1989US4875072 Automatic document feeder
10/17/1989US4875070 Method of removing toner from a rotating drum in a xerographic copying machine using a vibrating blade
10/17/1989US4875063 Electrostatic recording apparatus
10/17/1989US4874958 Sheet edge detector
10/11/1989EP0215803B1 Cylindrical brush
10/10/1989US4873554 Electrostatographic machine with withdrawable copy paper module
10/10/1989US4873549 Device for detecting the life of an image forming process unit, opening of a seal of the unit and attachment of the unit to an image forming apparatus
10/10/1989US4873548 Image forming apparatus comprising a main assembly having a top frame adapted to swing open and closed with respect to a bottom frame and having process cartridge detachably mounted in the main assembly
10/05/1989DE3810015A1 Application of a sheet-like information medium and its design
10/03/1989US4872035 Image forming apparatus
09/1989
09/27/1989EP0334327A2 Multi-screen setting condition display system
09/27/1989EP0334287A2 Electrostatic recording apparatus
09/26/1989US4870644 Control crash diagnostic strategy and RAM display
09/26/1989US4870589 Management apparatus for equipment
09/26/1989US4870526 Automatic power turn-off apparatus for an electronic apparatus
09/26/1989US4870466 Cleaning device having fur brush, scavenger roller and scraper for electrostatic recorder
09/26/1989US4870465 Toner removal and surface abrading apparatus for a charge retentive surface
09/26/1989US4870449 Cleaning apparatus with magnetic toner mover
09/26/1989US4869707 Belt tension device
09/26/1989CA1260528A1 Control for retracting the cleaning blade of a reproduction or printing machine when the machine is not in use
09/21/1989DE3907875A1 Image recorder
09/20/1989EP0333106A2 Image forming apparatus
09/20/1989CN1035728A Electrophotograph apparatus
09/19/1989US4868729 Power supply unit
09/19/1989US4868610 Copying apparatus with subjectively stored magnification values
09/19/1989US4868608 Highlight color imaging apparatus
09/19/1989US4868607 Electrophotographic device with a bead pickoff arrangement
09/19/1989US4868605 Copying apparatus capable of forming various types of images
09/19/1989US4868599 Device and method for storing toner waste
09/19/1989US4867481 Anti-photocopying paper and/or anti-telefacsimile paper
09/12/1989US4866486 Copying machine with simul-color copy function and divisional copy function
09/12/1989US4866483 Cleaning station for use in an electrophotographic print engine
09/12/1989US4866482 Image forming device for electrostatic recording apparatus having a slidable replacement holding case
09/12/1989US4866479 Aluminum-based alloy containing nickel; electronic copying machines; laser beam printers; continually producing sharp images
09/08/1989WO1989008283A1 Electrophotographic printing device with regulated electrophotographic process
09/08/1989WO1989008282A1 Single-page printer for duplex and simplex operation
1 ... 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 ... 343