Patents
Sitemap › G03 - Photography; Cinematography; Analogous techniques using waves other than optical waves; Electrography; Holography › G03B - Apparatus or arrangements for taking photographs or for projecting or viewing them; Apparatus or arrangements employing analogous techniques using waves other than optical waves; Accessories therefor › G03B 27 - Photographic printing apparatus
Patents for G03B 27 - Photographic printing apparatus (25,157)
11/1981
11/03/1981US4298270 Electrographic apparatus
11/03/1981CA1111896A1 Testing copy production machines
11/03/1981CA1111814A1 Exposure device including light diffusing and absorbing regions therein
10/1981
10/28/1981EP0038693A2 Optical imaging system
10/28/1981EP0038522A1 Vacuum document feeder
10/28/1981EP0038406A2 Control means for a film strip
10/27/1981US4297027 Apparatus for exposing and developing photosensitive material
10/27/1981US4297025 Document feeder system having a suspending/commencing mode
10/27/1981US4297023 Electrophotographic copying apparatus
10/27/1981US4297009 Image storage and display
10/21/1981EP0038207A2 Apparatus for controlling the lateral alignment of a belt and electrostatographic printing machines and document handlers incorporating same
10/21/1981EP0038050A2 Electrophotographic color proofing apparatus
10/21/1981EP0038049A2 Binary scan system
10/21/1981EP0038048A2 Light scanning assembly for electrophotographic printing plate making apparatus
10/21/1981EP0037974A1 Stretch mount for reproduction machines
10/20/1981US4296423 Device for adjusting image density in composite information recording apparatus
10/20/1981US4295737 Grooved belt document registration system
10/20/1981US4295736 Optical assembly for use in copying machine
10/20/1981US4295735 Optical projection system having a photorepetition function
10/20/1981US4295732 Bound document apparatus latching mechanism
10/20/1981US4295589 Device for feeding web with temperature compensating means
10/20/1981CA1111098A1 Electrophotographic printing system
10/20/1981CA1111009A1 Photocopier scanning illumination system
10/20/1981CA1110895A1 Apparatus and process for photographically duplicating intelligence existing on photoplastic film
10/15/1981WO1981002933A1 Apparatus for modifying images on photographic film
10/14/1981EP0037733A1 Microfilm flash illumination apparatus
10/14/1981EP0037711A2 Method and apparatus for controlling a reproduction machine
10/13/1981US4295186 Slit illuminating device
10/13/1981US4294540 Document belt vacuum manifold
10/13/1981US4294539 Document vacuum weir system
10/13/1981US4294537 Photographic reprint system with information display
10/13/1981US4294536 Automatic control of copier copy contrast and density for production runs
10/13/1981US4294535 Electrostatic copying apparatus
10/13/1981US4294534 Multiple function reproduction apparatus
10/13/1981US4294418 Tape cartridge
10/07/1981EP0037316A1 Copying machine for authentication of an original
10/07/1981EP0037065A2 Apparatus for drawing in and transporting printing plates
10/07/1981EP0037064A2 Apparatus for transporting printing plates
10/06/1981US4293216 Method of producing color separation negatives with reduced contrast
10/06/1981US4293215 Print inspection and packaging method and apparatus
10/06/1981US4293202 Light beam recording device
10/06/1981US4293124 System for automatically loading planar film sheets onto a film positioning device
10/06/1981CA1110314A1 Electrostatic printing arrangements
09/1981
09/29/1981US4292521 Radiographic device and method for recovering information from over-exposed radiographs
09/29/1981US4291974 Dual mode document belt system
09/29/1981US4291973 Scanning system
09/29/1981US4291972 Photographic reprint system with large print quantity verification
09/29/1981US4291969 Photographic developer-printer assembly, and a conveying roller unit therefor
09/29/1981US4291957 Graphic forming device with toggle clamped lamp arm
09/29/1981US4291956 Graphic forming device with preview feature
09/29/1981US4291802 Light-tight cassette
09/29/1981CA1109925A1 Electrophotographic copying machine
09/23/1981EP0036341A1 Optical system for the realization of special effects on films
09/22/1981US4290596 Carriage bin synchronization for dual mode collator
09/22/1981CA1109550A1 Copier/collator with extended collate functions
09/22/1981CA1109497A1 Cartridge sheet feed attachment
09/17/1981WO1981002639A1 An envelope for transparencies for overhead projectors and like projecting apparatuses
09/16/1981EP0035500A1 Laser-based image recording system
09/15/1981US4290097 High-pressure discharge lamp and reflector combination
09/15/1981US4289377 Projecting apparatus
09/15/1981CA1109118A1 Illumination slit for a reproducing machine
09/09/1981EP0035113A1 Alignment apparatus
09/08/1981US4288157 Apparatus for controlling the quality of a picture which is to be processed in a reprapparatus
09/08/1981US4287984 Belt with plural layers used in the automatic document feeding apparatus
09/08/1981CA1108688A1 Document handling apparatus and reproducing machine
09/08/1981CA1108687A1 Collating system for slide reproduction
09/01/1981US4287461 Motor driving system
09/01/1981US4286870 Document belt with discrete vacuum areas
09/01/1981US4286868 Photographic printer with automatic sensor calibration
09/01/1981US4286867 Light source unit assembly for photographic enlarger
09/01/1981US4286861 Electrostatic copying process and apparatus
09/01/1981US4286853 Microfiche camera having motor control system
09/01/1981CA1108224A1 Print original with means for attachment to print cylinder
09/01/1981CA1108221A1 Electrostatographic copying
09/01/1981CA1108220A1 Illumination slit for a reproducing machine
09/01/1981CA1108219A1 Reproduction machine with on board document handler diagnostics
09/01/1981CA1108214A1 Low pressure sodium vapor discharge lamp
08/1981
08/26/1981EP0034269A2 Recirculating document feeder
08/25/1981US4285593 Circuit for the control of exposure time in photographic enlarging equipment
08/25/1981US4285592 Multidirectional photographic compound stage
08/25/1981US4285590 Precession scanning system for copier device
08/25/1981US4285587 Compact multiple image camera
08/25/1981US4285512 Document feed device
08/25/1981US4285480 Cassette loading system and self-threading cassette for use therewith
08/25/1981CA1107807A1 Microfilm adaption unit for photocopier machines
08/25/1981CA1107805A1 Variable magnification copying apparatus
08/25/1981CA1107804A1 Variable magnification reproducing machine
08/20/1981WO1981002346A1 Flexographic printing camera and method of operation
08/19/1981EP0034066A2 Printer with forms overlay
08/18/1981US4285032 Tubular incandescent lamp
08/18/1981US4284715 Diffusion of radiant energy through apertured opaque element, reflection, photosensitive film
08/18/1981US4284349 Means for imaging a lithographic plate
08/18/1981US4284348 Original transport system for copying apparatus
08/18/1981US4284347 Aperture-controlling device in a variable-scale photocopying machine
08/18/1981US4284346 Electrophotographic copying machine
08/18/1981US4284270 Stack for bottom sheet feeder
08/12/1981EP0033595A1 Camera
08/12/1981EP0033453A1 Duplex copy printing system and method
08/11/1981CA1106781A1 Pre/post-collation copying system
08/11/1981CA1106671A1 Aperture-controlling device in a variable-scale photocopying machine
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