Patents
Sitemap › G03 - Photography; Cinematography; Analogous techniques using waves other than optical waves; Electrography; Holography › G03G - Electrography; Electrophotography; Magnetography › G03G 15 - Apparatus for electrographic processes using a charge pattern
Patents for G03G 15 - Apparatus for electrographic processes using a charge pattern (115,618)
01/1981
01/06/1981CA1093139A1 Photographic apparatus
01/06/1981CA1093138A1 Document coding
01/06/1981CA1092800A1 Developer roll
12/1980
12/30/1980US4242566 Heat-pressure fusing device
12/30/1980US4242434 Magnetic carrier, measurement of conductivity
12/30/1980US4241991 Photocopying machine
12/30/1980US4241990 Multi-purpose optical data processor
12/30/1980US4241696 Apparatus for detecting toner concentration
12/30/1980US4241695 Electrostatic developing apparatus including powder propelling means
12/30/1980US4241694 Metering roll with fixed slider strips
12/30/1980US4241658 Duplicating machine with duplexing capability
12/30/1980CA1092678A1 Device for detecting abnormal temperature in fixer
12/30/1980CA1092640A1 Copier exposure carriage drive system
12/30/1980CA1092639A1 Photoconductor charging technique
12/30/1980CA1092342A1 Toner concentration control apparatus
12/23/1980US4241161 Applying two separate charges
12/23/1980US4240869 Method for manufacturing a photo cathode for electroradiographic and electrofluoroscopic apparatus
12/23/1980US4240744 Photographic copying machine with interchangeable format masks
12/23/1980US4240740 Development system
12/23/1980US4240739 Electrostatic copying apparatus
12/23/1980US4240723 Process for electrographic image production and an apparatus for carrying out this process
12/23/1980US4240375 Apparatus for detecting concentration of toner in developing powder
12/23/1980US4240374 Magnetic image decorator having rotating cylinders and knife blades associated therewith
12/23/1980US4240189 Method of producing heat pipe roller
12/23/1980CA1092219A1 Method and apparatus for adaptive collation
12/23/1980CA1092185A1 Abnormally low reflectance photoconductor sensing system
12/23/1980CA1092175A1 Apparatus for handling flexible sheet material of different sizes
12/23/1980CA1091991A1 Mercapto functional polyorganosiloxane release agents for fusers in electrostatic copiers
12/16/1980US4240125 Corona generating element
12/16/1980US4240085 Electrographic recorder
12/16/1980US4240084 Electrographic recorder with writing, developing and driving assembly
12/16/1980US4239845 Electrophotographic copying method using two toners on magnetic brush
12/16/1980US4239375 Image carrier drum for an electrophotographic copier
12/16/1980US4239374 Electrostatographic apparatus comprising automatic document type determination means
12/16/1980US4239373 Full wave rectification apparatus for operation of DC corotrons
12/16/1980US4239372 Transfer type electrophotographic copying machine
12/16/1980US4239371 Electrophotographic copying machines
12/16/1980US4239370 Electrophotocopying machine for production of colored photocopies
12/16/1980US4239017 Development system
12/16/1980CA1091759A1 Magnetic inking apparatus for pulsed electrical printing
12/16/1980CA1091758A1 Non-impact printer with magnetic ink reorientation
12/16/1980CA1091757A1 Pulsed electrical printer with dielectrically isolated electrode
12/16/1980CA1091756A1 Electrophotographic apparatus having compensation for changes in sensitometric properties of photoconductors
12/16/1980CA1091755A1 Copying machine with means for easy replacement of the photo-receptor sheet
12/16/1980CA1091754A1 Reproduction machine control
12/16/1980CA1091752A1 Multi-mode reproducing apparatus
12/16/1980CA1091751A1 Illumination system
12/16/1980CA1091749A1 Electrophotographic contact duplicating apparatus and method
12/16/1980CA1091497A1 Process for electrophotographic image formation by toner transfer using a corona
12/16/1980CA1091495A1 Photocopying machine document feeder
12/11/1980WO1980002785A1 Method of impressing and reading out a surface charge on a multi-layered detector structure
12/10/1980EP0019687A1 Apparatus for and method of sheet presence detection
12/09/1980US4238562 Transparent resin binder, spirobenzopyran indole, coloring agent
12/09/1980US4238126 Recirculating simplex/duplex document handler
12/09/1980US4237943 Tuner supply for electrostatic copiers
12/09/1980US4237819 Image developing machine using magnetic toner
12/09/1980US4237592 Elastic roller for image forming apparatus
12/09/1980CA1091287A1 Cycle-out logic for a multi-mode copier/duplicator
12/02/1980US4236813 Multiplex photocopier system having plural scanners without memory
12/02/1980US4236812 Image recording method for electrophotographic film
12/02/1980US4236811 Electrophotographic copying apparatus
12/02/1980US4236810 Means for inhibiting the separation of toner particles from dispersant in a copy machine
12/02/1980US4236809 Low resolution correction apparatus and method for electrophotographic copiers
12/02/1980US4236808 Copier scan and collator back bar control
12/02/1980US4236807 Modular electrophotographic copying machine
12/02/1980US4236709 Cartridge sheet feed attachment
12/02/1980US4236486 Toner concentration control device
12/02/1980US4236485 Toner concentration control device
12/02/1980US4236483 Metering roll with fixed sliders
12/02/1980CA1090869A1 Apparatus and method for measurement of the ratio of toner particle electrostatic charge to toner particle mass in electrostatographic devices
12/02/1980CA1090867A1 Dual mode electrostatographic printing machine
12/02/1980CA1090866A1 Sheet removing device for use in electro-photographic copying machine
12/02/1980CA1090865A1 Apparatus and method for intermediate image storage device precollation in electrostatographic processing machines
11/1980
11/27/1980WO1980002603A1 Improved photon detector
11/27/1980WO1980002602A1 Realtime radiation exposure monitor and control apparatus
11/26/1980EP0019491A1 Temperature-self regulating fuser member
11/26/1980EP0019485A1 Electrophotographic printing machine
11/26/1980EP0019380A1 Apparatus for developing a latent image
11/26/1980EP0019094A1 Original document transport mechanism for an electrophotographic copier
11/26/1980EP0019068A1 Charge receptor film for charge transfer imaging
11/25/1980US4235550 Automatic document handler control
11/25/1980US4235549 Developing station for an electrostatic copier
11/25/1980US4235548 Electrostatic latent image transfer type copying apparatus
11/25/1980US4235195 Liquid development apparatus
11/25/1980US4235194 Dry process developing apparatus for use in electrophotographic copying machine
11/25/1980US4235193 Magnetic brush apparatus for developing charge images
11/25/1980US4235166 Fixing apparatus
11/18/1980US4234305 Transfer sheet guiding device
11/18/1980US4234250 Electrophotographic printing system
11/18/1980US4234249 Tracking power supply for AC and DC corotrons
11/18/1980US4234248 Hot roll fuser
11/18/1980US4234180 Recirculating document handler configuration
11/18/1980US4233935 Magnetic brush apparatus for electrostatic printing system
11/18/1980CA1090007A1 Ionography imaging method and chamber
11/18/1980CA1089924A1 Device for the control of the light emission of a gasdischarge lamp
11/18/1980CA1089920A1 Half-tone screen for an electrophotographic printing machine
11/18/1980CA1089690A1 Focal adjustment on a single-focus lens in a continuously variable magnification system
11/18/1980CA1089643A1 Development system
11/13/1980WO1980002466A1 Electrophotographic apparatus providing output from a typesetter
11/13/1980WO1980002464A1 Sheet feeding apparatus
1 ... 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 ... 1157