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)
12/1991
12/03/1991US5070370 Image-forming apparatus having a replaceable cartridge and a transfer member cleaning device
12/03/1991US5070366 Image forming apparatus featuring a constant contact-pressure drive
12/03/1991US5070365 Low lateral force drive roller system
12/03/1991US5070363 Counting system for use in a copying machine
12/03/1991US5070324 Variable magnification copier
11/1991
11/28/1991WO1991018287A1 Pin hole detector
11/28/1991DE4116562A1 Cleaning blade prodn. - for electrophotography using curing derivs. comprising imidazole deriv. and poly:ol components
11/27/1991EP0458318A2 Image forming apparatus with rotable member press-contacted to image bearing member
11/26/1991US5068853 Fail-safe apparatus for image forming apparatus
11/21/1991EP0457552A2 Reprographic machine
11/21/1991EP0457544A1 Printing of reflective sheeting
11/19/1991US5066989 Electrophotographic
11/19/1991US5066988 Electrophotographic apparatus having means for avoiding blurring effects caused by idle intervals
11/19/1991US5066983 Cleaning unit for cleaning recording medium of an electrophotographic apparatus
11/19/1991US5066982 Cleaner-less image forming apparatus
11/19/1991US5066978 Image forming apparatus having an exchangeable unit exchange timing indicating device
11/19/1991US5066977 System for managing the number of image forming operations in an image forming apparatus
11/19/1991US5066976 Image forming apparatus having a print cartridge
11/19/1991US5065995 Sheet supplying device
11/14/1991CA2016655A1 Individually wrapped towelett impregnated with a chemical rejuvinating formula, to remove and clean dirt, debris and toner buildup from the rollers and document path of a facsimile machine, commonly known as a fax machine
11/13/1991EP0455771A1 Copier with auto scaling, auto paper select, and window scaling.
11/12/1991US5065195 Color image forming apparatus having a freely installable and detachable process cartridge
11/12/1991US5065194 Piezo film cleaner
11/12/1991US5065188 Charge-eliminating apparatus of copier
11/12/1991US5065181 Image forming apparatus capable of inscribing a desired date on copying paper
11/05/1991US5063535 Programming conflict identification system for reproduction machines
11/05/1991US5063414 Copier allowing successive copying operations while avoiding certain waiting period
11/05/1991US5063409 Image recording apparatus and exchanging unit used in the same
11/05/1991US5063404 Document illumination assembly adapted to reduce platen overheating
11/05/1991US5063397 Variable-thickness imaging members
10/1991
10/31/1991DE4113560A1 Fixing station for electrophotographic imaging device - has return mechanism for feeding transparent sheet through fixing station several times
10/30/1991EP0453963A2 Process cartridge detachably mountable to image forming apparatus
10/30/1991EP0255543B1 Electrophotographic reproduction apparatus and method with selective screening
10/29/1991US5061966 Method of cleaning an image retainer
10/29/1991US5061962 Copier with a plurality of reference positions
10/29/1991US5061961 Dielectric member core support and locating device
10/29/1991US5061959 Photographic recording apparatus having photoconductive drum cartridge unit with automatically closed openings
10/29/1991US5061958 Display of user selectable paper feed options
10/23/1991EP0453143A2 Fibrillated pultruded electrical component
10/23/1991EP0453058A2 Apparatus for forming an image on a record medium
10/23/1991EP0452856A2 Electrophotographic apparatus
10/23/1991EP0452855A2 A copying machine provided with a recirculating document feeding apparatus
10/23/1991EP0452818A2 Electrostatic recorder and electrostatic latent image measuring instrument
10/23/1991EP0452795A2 Transfer apparatus
10/23/1991EP0326558B1 Non-mechanical printing or copying unit with an exposure system arranged in the development region
10/23/1991EP0325599B1 Device for filling toner from a transfer container into a toner storage container
10/22/1991US5060025 Single-sheet page printer for duplex and simplex operation
10/22/1991US5060016 Process unit for image forming apparatus, including a charging brush
10/22/1991US5060015 Air flow controlling system for an image recording apparatus
10/22/1991US5060014 Image forming apparatus and detachable process kit utilizing a drum charging means in relatively light contact pressure therewith
10/22/1991US5059991 Dustproof transparent member
10/15/1991US5057936 Copy quality monitoring
10/15/1991US5057876 Image forming apparatus with an image editing function
10/15/1991US5057874 Paper conveying apparatus
10/15/1991US5057873 Method of cleaning a transfer drum of an electrophotographic apparatus
10/15/1991US5057867 Image forming apparatus which corrects the image forming factors in response to density sensing means and duration of inactive state
10/09/1991EP0450395A2 Image recording apparatus
10/08/1991US5055882 Developing agent dispersing unit for an image forming apparatus
10/08/1991US5055876 Image formation apparatus having a process cartridge acting as guidance for a medium
10/03/1991WO1991015805A1 A switchon-switchoff, multistate, interactive, antiphotocopying, antifraud and antifaxing system
10/02/1991EP0449527A2 Cleaning blade and producing method thereof
10/01/1991US5053885 Copier with auto scaling, auto paper select, and window scaling
10/01/1991US5053830 Fixing apparatus having sheet separator pawls for image forming apparatus
10/01/1991US5053818 Method and apparatus for copying semi-transparent originals using a black backing member
10/01/1991US5053817 Supporting and driving mechanism for a rotating body
10/01/1991US5053816 Apparatus for detecting whether a replaceable cartridge is new or used in an image forming apparatus
10/01/1991US5053813 Electrophotographic copying apparatus having two copy-start keys
10/01/1991US5052670 Image-forming machine
10/01/1991US5052090 Flange unit for a photoconductor drum and photoconductor drum unit
10/01/1991CA1290006C Offset electrostatic printer and imaging process utilizing heated air
09/1991
09/25/1991EP0448039A2 Electrographic image forming apparatus
09/24/1991US5051866 Power circuit device for an image-forming apparatus
09/24/1991US5051783 Cam for shifting a transfer device and a cleaning device
09/24/1991US5051779 Job control sheet for image processing system
09/24/1991US5051778 Electrophotographic copying machine which integrates components having substantially equal service lives into respective detachable units formed of a developing unit, a photoreceptor unit and a toner cartridge unit
09/24/1991US5051332 Latent images and development, cleaning
09/24/1991CA1289613C Automatic copier show-around erase system
09/24/1991CA1289612C Automatic copier signature set production
09/17/1991US5049945 Image forming apparatus with a simplified paper unjamming mechanism
09/17/1991US5049940 Image forming apparatus
09/17/1991US5049935 Electrophotographic image forming apparatus with reversal development
09/17/1991US5049934 Image forming apparatus having image transfer means
09/17/1991US5049929 Conflict resolution with warning in a reprographic system
09/11/1991EP0445718A2 Image forming apparatus having function of dust removal
09/10/1991US5047807 Development apparatus having a plate scavenging device
09/10/1991US5047803 Image forming apparatus with detachably mountable process cartridge
09/10/1991US5047801 Color image forming apparatus having the developing means and cleaning means formed as a detachable unit
09/03/1991US5046166 Digital electrophotographic copying apparatus
09/03/1991US5045885 Link mechanism provided between an upper frame and a lower frame of an image forming apparatus
09/03/1991US5045880 Pre-programming during job run
09/03/1991US5045879 Image forming apparatus using photosensitive toner
09/03/1991US5044619 Control of pre-ordered stock
08/1991
08/28/1991EP0443784A1 Lighting unit, and image formation apparatus with it
08/28/1991EP0443612A1 Controller of motors
08/28/1991EP0443461A2 Process cartridge and image forming apparatus usable with same
08/27/1991US5043864 Image forming apparatus
08/27/1991US5043769 Cleaning device
08/27/1991US5043766 Exposure control apparatus for variable magnification copying machine
08/27/1991US5043765 Image forming apparatus including control means responsive to image forming conditions
08/27/1991US5043760 Carrier particle loosening device
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