Patents for G03G 15 - Apparatus for electrographic processes using a charge pattern (115,618)
04/1979
04/17/1979US4149485 Apparatus for forming a uniform liquid film on a roller
04/17/1979CA1052854A1 Copying apparatus
04/17/1979CA1052636A1 Electrically floating electrode in an electrophotographic development method and apparatus
04/17/1979CA1052635A1 Method and apparatus for developing an electrostatic latent image on an electrophotographic film
04/17/1979CA1052634A1 Method and apparatus for developing an electrostatic latent image on an electrophotographic film
04/17/1979CA1052606A1 Aperture card enlarger-printer with margin adjustment
04/17/1979CA1052559A1 Magnetic brush developing apparatus
04/10/1979US4148581 Shutter opening and closing mechanism for an electrographic apparatus
04/10/1979US4148577 Bias voltage adjusting means for electrographic apparatus
04/10/1979US4148274 Processing apparatus
04/10/1979CA1052405A1 Sprocket drive and stripper arrangement for computer form feeder apparatus
04/03/1979US4148043 Two-color electrostatic printing apparatus
04/03/1979US4148042 Electrographic copier with one-piece belt and styli
04/03/1979US4148009 Method and apparatus for electronically retouching
04/03/1979US4147949 Apparatus for X-ray radiography
04/03/1979US4147948 Apparatus for X-ray radiography
04/03/1979US4147936 Method of making tomographic images of X-rayed objects
04/03/1979US4147922 Device for fixing a toner image
04/03/1979US4147832 Fixing roller
04/03/1979US4147541 Electrostatic imaging member with acid lubricant
04/03/1979US4147540 Color electrophotographic developer system employing one carrier having a coating of resin and copper tetra-4-(octadecylsulfonomido)phthalocyanine
04/03/1979US4147501 Fixing device
04/03/1979US4147426 Electrostatic photographic copying machine
04/03/1979US4147401 Polygonal mirror holder and drive assembly
04/03/1979US4147128 Apparatus for cleaning and developing dielectric receptor sheets
04/03/1979US4147127 Toner concentration detecting apparatus
04/03/1979CA1051967A1 Multi-color original for an electrophotographic printing system
04/03/1979CA1051935A1 Sheet feeding apparatus
04/03/1979CA1051811A1 Document belt with imperforate bands
04/03/1979CA1051725A1 Electrostatic duplicating method and apparatus utilizing wet-developing
04/03/1979CA1051652A1 Electrostatic development system with passive storage capacity
03/1979
03/27/1979US4146898 Non-contact magnetic toner transfer system
03/27/1979US4146822 Electrophotographic copier
03/27/1979US4146789 Multi-pin electrode assembly
03/27/1979US4146659 Fusing toner on fuser members made of noble metals and alloys thereof
03/27/1979US4146325 Method and apparatus for visualization of electrostatic images
03/27/1979US4146324 Liquid developing device in electrophotographic copying apparatus
03/27/1979US4146323 Auger for a development system
03/27/1979US4146219 Document transport apparatus
03/27/1979US4146218 Document counter
03/27/1979US4145965 Rollers for fixing a developed image in an electrophotographic copying machine
03/27/1979CA1051505A1 Coated electrode for corona generator
03/27/1979CA1051504A1 Electrographic recording stylus
03/27/1979CA1051503A1 Segmented bias roll
03/27/1979CA1051470A1 Detaching device for a sheet-shaped copy support
03/27/1979CA1051349A1 Intermixed pitches in a buffered printer
03/27/1979CA1051263A1 Removal of carrier beads from photosensitive drum
03/21/1979EP0001128A1 Electrophotographic copying machine
03/20/1979US4145599 Fixing device of electrophotographic copying machine
03/20/1979US4145181 Apparatus to facilitate jam recovery and hot roll reversal in a fusing assembly
03/20/1979US4145136 Scanning system for an electrostatic copying apparatus
03/20/1979US4144839 Feeding device for supplying developer powder to a magnetic drum
03/20/1979US4144835 Contact heat fixing apparatus
03/20/1979US4144808 Electrophotographic marking apparatus
03/20/1979CA1051107A1 Indicator for a dispensing device
03/20/1979CA1051087A1 Biasing arrangement for a corona discharge device
03/20/1979CA1051085A1 Delayed heating circuit for electrostatic copier
03/20/1979CA1051083A1 Shutterless camera system
03/20/1979CA1050923A1 Sorter apparatus
03/20/1979CA1050829A1 Electrostatic image development using development electrode with rough surface
03/20/1979CA1050749A1 Resilient rollers
03/20/1979CA1050748A1 Developer seal
03/13/1979US4144550 Reproduction machine using fiber optics communication system
03/13/1979US4144539 Feedback control for laser discharge system
03/13/1979US4144061 Transfer development using a fluid spaced donor member
03/13/1979US4143965 Electrophotography method utilizing a photoconductive screen
03/13/1979US4143964 Scanning light source
03/13/1979US4143963 Device for controlling rotations of photosensitive drum for electrographic apparatus
03/13/1979US4143962 Electrographic imaging apparatus and method
03/13/1979US4143961 Electrophotographic duplication apparatus
03/13/1979US4143570 Feeding and cutting control mechanism for roll stored paper
03/13/1979CA1050608A1 Portable corona power supply circuit
03/13/1979CA1050606A2 Dual mode control logic for a multi-mode copier/duplicator
03/13/1979CA1050578A1 Guide chute arrangement for web feeding apparatus
03/13/1979CA1050260A1 Resilient roller
03/07/1979EP0000964A1 Device for the development of an electrostatic charge image with the aid of magnetic brushes.
03/07/1979EP0000914A1 Separation and deflection device for a copying apparatus, in particular for a tracing copying machine
03/06/1979US4143381 Method for information processing
03/06/1979US4142898 Imaging film of sensitizing layer upon UV-sensitive diazo layer
03/06/1979US4142889 Variation of the amount of light during exposure to improve image formation
03/06/1979US4142793 Variable speed drive apparatus for the scanning system of a copy machine
03/06/1979US4142792 Electrophotographic apparatus
03/06/1979US4142791 Electrographic apparatus having a screen-type photoconductive drum
03/06/1979US4142655 Toner dispensing and supply arrangement
03/06/1979US4142480 Apparatus for developing electrophotographic copying materials
03/06/1979US4142281 Magnetic roller for electrographic developing and/or reproducing devices
03/06/1979CA1050098A1 Microfiche reader/printer
03/06/1979CA1049860A1 Apparatus for developing electrostatic latent images
03/06/1979CA1049841A1 Transfer belt alignment and registration
03/06/1979CA1049772A1 Segmented gate developer flow controller
03/06/1979CA1049771A1 Articulated development apparatus
03/06/1979CA1049770A1 Method and apparatus for varying developer bandwidth
02/1979
02/27/1979US4142192 Electrographic process and apparatus with recording after toning
02/27/1979US4142165 Electrostatic copying machine comprising improved magnetic brush developing-cleaning unit
02/27/1979US4142100 Process and apparatus for recording and optically reproducing X-ray images
02/27/1979US4141728 Transfer of dry developed electrostatic image using plural oppositely charged fields
02/27/1979US4141650 Improved shutter apparatus for electrophotographic apparatus
02/27/1979US4141648 Photoconductor charging technique
02/27/1979US4141647 Method and apparatus of aperture flooding
02/27/1979US4141646 Electrophotography apparatus with downtime control circuitry