| Patents for G03G 15 - Apparatus for electrographic processes using a charge pattern (115,618) |
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| 12/31/1991 | US5077584 Toner supply device for electrophotographic equipment |
| 12/31/1991 | US5077583 Closed loop magnetic brush development system |
| 12/31/1991 | US5077582 Photocopy monitoring system |
| 12/31/1991 | US5077581 Image forming apparatus with detachable memory to provide a procedure display feature |
| 12/31/1991 | US5077579 Copies with automatic document feeder |
| 12/31/1991 | US5077578 Development system |
| 12/31/1991 | US5077577 Automatic document feeder and copying apparatus having plural sheet feeding arrangement for feeding the same copy sheet and control means for forming side-by-side image of plural documents |
| 12/31/1991 | US5077576 Programmable image area lockout for damaged imaging members |
| 12/31/1991 | US5077574 Image forming apparatus |
| 12/31/1991 | US5077566 Image forming apparatus |
| 12/31/1991 | US5077468 Electrostatic charging apparatus and method |
| 12/31/1991 | US5077172 Carrier web transfer device and method for electrophotographic printing press |
| 12/31/1991 | US5077159 Using toner in which the toner does not have to be fused to the imaging member |
| 12/31/1991 | US5077158 Electrophotographic image-forming process using grey toner |
| 12/31/1991 | US5076967 Chlorinated ethylene-alpha olefin copolymer, carbon black, cur ing and foaming agents |
| 12/31/1991 | US5076568 Damping servo-motor control |
| 12/31/1991 | US5076563 Apparatus for controlling a sheet supplying device |
| 12/31/1991 | US5076561 Electronic photo-copying apparatus |
| 12/31/1991 | US5076560 Recirculating document feeder and method |
| 12/31/1991 | US5076559 Separation member for an improved recirculating document feeder |
| 12/31/1991 | US5076558 Mechanism for facilitating document sheet settling in an improved recirculating document feeder |
| 12/31/1991 | US5076201 Developing device used in electrophotographic field and method of producing developing roller incorporated therein |
| 12/31/1991 | US5075939 Sheet supplying device |
| 12/27/1991 | EP0462594A2 An electro-photographic printing apparatus |
| 12/27/1991 | EP0462457A2 Electrostatic recording apparatus |
| 12/27/1991 | EP0462236A1 Multicolor image transfer method and apparatus. |
| 12/26/1991 | WO1991020156A1 Electrographic process utilizing fluorescent toner and filtered detector for generating an electrical image signal |
| 12/25/1991 | CN1015213B Method for forming images |
| 12/24/1991 | US5075787 Reproduction apparatus and method with alphanumeric character-coded highlighting for selective editing |
| 12/24/1991 | US5075786 Printer apparatus with sheet supply selecting means |
| 12/24/1991 | US5075767 Digital color image signal processing apparatus |
| 12/24/1991 | US5075735 Electrophotographic apparatus using developer that is changed from a solid to a liquid |
| 12/24/1991 | US5075734 Sheet transport system with improved registration |
| 12/24/1991 | US5075732 Image forming apparatus which sets fixing roller speed depending on the number of copies on the transfer drum |
| 12/24/1991 | US5075731 Transfer roller device |
| 12/24/1991 | US5075730 Apparatus and method for forming an image |
| 12/24/1991 | US5075729 Image forming apparatus having a developing and cleaning function using a controlled potential difference between surface and developing bias |
| 12/24/1991 | US5075728 Developing apparatus with developer leak prevention |
| 12/24/1991 | US5075727 Developing device for image forming apparatus |
| 12/24/1991 | US5075726 Toner density control device with adjustable reference values for multiple developer copier |
| 12/24/1991 | US5075725 Automatic set-up for electrostatographic machines |
| 12/24/1991 | US5075724 System for recognizing interchangeable articles |
| 12/24/1991 | US5075721 Method and apparatus for controlling the movement of paper-holding trays within a printer or the like |
| 12/24/1991 | US5075720 Slit illumination system for copying machine and the like |
| 12/24/1991 | US5075703 Ribbon coronode |
| 12/24/1991 | US5075702 Encoder roll |
| 12/24/1991 | US5075700 Magnetic recording device |
| 12/24/1991 | US5075186 Simplified xerography, separation of development and coloring |
| 12/24/1991 | US5074641 Optical scanning device |
| 12/24/1991 | US5074545 Device for preventing the transport of poorly aligned copy paper |
| 12/24/1991 | US5074537 Recirculating document feeder for copying both simplex and duplex documents |
| 12/24/1991 | US5074484 Corotron restringing tool |
| 12/24/1991 | US5074344 Toner container and latchable cover |
| 12/24/1991 | US5074342 Device for non-contaminating changing of a toner container in a toner conveying means of a non-mechanical printer or copier means |
| 12/24/1991 | US5074241 Developer material coating apparatus carry roller |
| 12/24/1991 | US5074240 Electrostatic |
| 12/24/1991 | US5074149 Acoustic wave measurement of the properties of porous materials filled with air and granules |
| 12/24/1991 | CA1293528C Thermodynamic printing method and means |
| 12/18/1991 | EP0461920A2 Printing systems |
| 12/18/1991 | EP0461854A2 Reproduction of line-raster data by raster output scanning at a line scan density capable of being fractionally related to the raster line density of the data |
| 12/18/1991 | EP0461672A2 Image forming apparatus. |
| 12/18/1991 | EP0461660A2 F-Theta lens and image forming apparatus using the same |
| 12/18/1991 | EP0461656A2 Apparatus for forming image pictures |
| 12/18/1991 | EP0461611A2 Electronic photographing apparatus |
| 12/18/1991 | EP0461610A2 Paper size determination device |
| 12/18/1991 | EP0461596A2 Heating apparatus using endless film |
| 12/18/1991 | EP0461595A2 Heating apparatus using endless film |
| 12/18/1991 | EP0461507A2 Meterless single component development |
| 12/17/1991 | USRE33770 Heat-fixing apparatus |
| 12/17/1991 | US5073803 Copying apparatus provided with an automatic document feeder and a sheet binding unit |
| 12/17/1991 | US5073802 Image forming apparatus capable of changing image forming modes during continuous image forming operation |
| 12/17/1991 | US5073801 Color image forming apparatus having different ejection parts for different paper thickness |
| 12/17/1991 | US5073799 Image forming apparatus which alters stand-by temperature of the fixing device according to toner color |
| 12/17/1991 | US5073798 Electronic photography apparatus |
| 12/17/1991 | US5073797 Toner sealing arrangement for a dry developing device of an electrostatic copier |
| 12/17/1991 | US5073796 Cooling system for an apparatus with a heat generating element therein |
| 12/17/1991 | US5073795 Electrophotography type image forming apparatus having improved exchanging kit |
| 12/17/1991 | US5073794 Image duplicating apparatus in which user specified operational conditions are stored and used based on the detected nature of the document being copied |
| 12/17/1991 | US5073793 Multi-color image forming method and an apparatus therefor |
| 12/17/1991 | US5073464 Method of processing electrophotographic lithographic printing plate precursors |
| 12/17/1991 | US5073434 Having thick dielectric imaging layer |
| 12/17/1991 | US5073218 Method of transferring a toner image to a substrate |
| 12/17/1991 | US5072924 Paper feeding control device |
| 12/17/1991 | US5072923 User-friendly document input |
| 12/17/1991 | US5072920 For stapling paper sheets |
| 12/17/1991 | US5072690 Developing device of electrophotographic printer |
| 12/12/1991 | WO1991019957A1 System and method for directly feeding paper to printing devices |
| 12/12/1991 | WO1991019232A1 Method and apparatus for reducing relief in toner images |
| 12/12/1991 | WO1991019230A1 Device for facilitating receiver member separation |
| 12/12/1991 | WO1991019229A1 Multicolor imaging method and apparatus |
| 12/12/1991 | WO1991019228A1 Device and medium for animation and method of photographing picture rapidly and continuously |
| 12/12/1991 | DE4118434A1 Electrophotographic reversal wet developing method - immersing bias voltage electrode in developer at potential at least 80 per cent of that of surface of photoreceptor |
| 12/12/1991 | CA2063451A1 System and method for directly feeding paper to printing devices |
| 12/11/1991 | EP0460951A2 A signal communication system |
| 12/11/1991 | EP0460773A2 Apparatus for forming an image on a record medium |
| 12/11/1991 | EP0460772A2 Apparatus for forming an image on a record medium |
| 12/11/1991 | EP0460719A2 Apparatus for stabilizing the quantity of light of a fluorescent lamp |
| 12/11/1991 | EP0460659A2 Facsimile apparatus |
| 12/11/1991 | EP0460641A2 A rare gas discharge fluorescent lamp device |
| 12/11/1991 | EP0460303A2 Continuous-form electrophotographic printers |