Patents
Patents for B41J 2 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed (138,049)
01/1990
01/23/1990US4895464 Wire matrix print head assembly
01/23/1990US4895463 Matrix print head
01/23/1990EP0270534A4 Resolution conversion of bitmap images using error term averaging.
01/17/1990EP0351347A2 Improved pattern mover for raster printing
01/17/1990EP0350953A2 Substrate for liquid jet recording head and liquid jet recording head provided with said substrate
01/17/1990EP0350865A2 An image recording device and an image processing apparatus
01/17/1990CN1038886A Printing apparatus and toner/developer delivery system therefor
01/16/1990US4894669 Laser beam printer
01/16/1990US4894667 Ink jet recording head having a surface inclined toward the nozzle for acting on the ink
01/16/1990US4894666 Image recording method and apparatus
01/16/1990US4894664 Monolithic thermal ink jet printhead with integral nozzle and ink feed
01/16/1990US4893952 Dot matrix printing system including improved ink transfer mechanism
01/16/1990US4893926 Focusing for optical print heads
01/16/1990US4893909 Magneto-optical light switching element and method of manufacturing same
01/16/1990US4893646 Fluid pressure regulator
01/16/1990US4893558 Image reproduction
01/11/1990WO1990000115A1 Arrangement for warming up the ink in the write head of an ink printing machine
01/10/1990EP0350258A2 Dot matrix printing heads
01/10/1990EP0349959A2 Ink jet recording apparatus
01/10/1990EP0349812A2 Thermal printing head and controller
01/09/1990US4893257 Multidirectional scan and print capability
01/09/1990US4893190 Gradation control device for thermal ink-transfer type printing apparatus
01/09/1990US4893177 Apparatus and a method for generating manuscripts to reproduce a color print
01/09/1990US4893138 Ink jet recovery device including a communicating valve and a ventilating valve
01/09/1990US4893137 Recording apparatus and ink cartridge
01/09/1990US4893136 Arithmetically computed motor hunt compensation for flying spot scanners
01/09/1990US4893135 Laser printer with position registration enhancement
01/09/1990US4893133 Thermal printing apparatus for forming a continuous tone dye image
01/09/1990US4892591 Filler for ink jet recording paper
01/09/1990US4892371 Semiconductor laser array light source and scanner
01/03/1990EP0349212A2 Needle printing head
01/03/1990EP0348516A1 Wire dot impact printer
01/03/1990EP0348422A1 Stream deflection jet body for liquid jet printers.
01/03/1990EP0160656B1 An electrophotographic information printer
01/02/1990US4891769 Printer having prioritized on-line and off-line modes
01/02/1990US4891768 Raster image processor
01/02/1990US4891688 Very high-acceleration tolerant circuit card packaging structure
01/02/1990US4891667 Document platen for electrostatographic reproduction apparatus
01/02/1990US4891657 Apparatus for forming an image
01/02/1990US4891656 Print cartridge with non-divergent electrostatic field
01/02/1990US4891655 Thermal color printer
01/02/1990US4891654 Ink jet array
01/02/1990US4891652 Image recording apparatus using plural types of energy and reversible transfer recording medium conveyance
01/02/1990CA1264199A1 Front-end system
12/1989
12/28/1989WO1989010265A3 Continuous ink jet printer having improved system for reducing pressure variations
12/28/1989DE3821267A1 Character generator for a thermal transfer printer
12/27/1989EP0348237A2 A laser beam projecting unit
12/27/1989EP0348234A2 Ink-jet recording apparatus
12/27/1989EP0348181A2 Ink jet recording method and apparatus used in the same method
12/27/1989EP0348047A1 Modulating radiation beams
12/27/1989EP0348003A2 Apparatus for optically writing information
12/27/1989EP0347857A1 Ink jet recording head
12/27/1989EP0347856A1 Ink jet recording head
12/27/1989EP0347740A1 Thermal recording head
12/27/1989CA1264094A1 Raster image memory
12/26/1989US4890126 Ink-phobic and ink-philic organic plasma polymer coating
12/26/1989US4890124 Printing apparatus utilizing an electric field applied between a charge storage layer on a transfer drum and a photoconductive layer member
12/26/1989US4890123 Print cartridge
12/26/1989US4890122 Method and apparatus for increasing inking resolution in an ink mosaic recording device
12/26/1989US4890120 Thermal transfer type printing device capable of selecting ink sheets
12/26/1989US4890119 Variable orientation ink catcher
12/26/1989US4889785 Electrophotographic light-sensitive material
12/26/1989US4889761 Solidification; uniform thickness
12/26/1989US4889587 Dry etching, patterning heat-generating resistor
12/26/1989US4889052 Paper feed control for a dot-line printer
12/21/1989DE3919991A1 Verfahren zur tintenstrahlaufzeichnung A method for ink jet recording
12/21/1989DE3919979A1 Verfahren zur umwandlung der gradation eines digitalen bilds, schaltung hierfuer, druckdichtesteuergeraet fuer einen drucker und drucker zur verwendung des verfahrens Process for the conversion of the gradation of a digital image, tripping here for, druckdichtesteuergeraet for a printer and printer for use of the procedure
12/21/1989DE3919447A1 Tintenstrahlaufzeichnungsgeraet Tintenstrahlaufzeichnungsgeraet
12/21/1989DE3919310A1 Matrixdrucker Matrix printer
12/20/1989EP0347358A1 Electrophotographic machines with toner density balance and stroke width control
12/20/1989EP0347341A2 Process for correcting down-the-page nonuniformity in thermal printing
12/20/1989EP0347257A2 Image recording apparatus
12/20/1989EP0347239A2 Recording head having spaced-apart electrodes
12/20/1989EP0347238A2 Minutely patterned structure, and method of producing the same
12/20/1989EP0346935A2 Ink jet recording head and process for preparing a substrate for a recording head
12/20/1989EP0346833A2 Ticket issuing device
12/20/1989EP0346647A1 Process for correcting across-the-head nonuniformity in thermal printers
12/20/1989EP0346412A1 Compliant print head loading mechanism for thermal printers
12/20/1989CN1006145B Electromagnetic hammer actuator for impact printer
12/19/1989US4888777 Semiconductor laser control apparatus
12/19/1989US4888603 Light emitting diode array
12/19/1989US4888601 Image recording apparatus and method
12/19/1989US4888598 Ink writing head with piezoelectrically excitable membrane
12/18/1989EP0323474A4 Liquid stream deflection printing method and apparatus.
12/14/1989WO1989012215A1 Controlled ink drop spreading in hot melt ink jet printing
12/14/1989EP0313597A4 Hot melt ink supply system.
12/13/1989EP0345764A2 Thermal price tag printer printer thermal head support structure
12/13/1989EP0345724A2 Liquid jet recording head and recording device having the same head
12/13/1989EP0210209B1 Device for writing by ink multinozzle projection
12/12/1989US4887228 Method for filling surface parts of an image with a surface pattern
12/12/1989US4887226 Dot printing device capable of printing underline together with characters
12/12/1989US4887167 Recording apparatus
12/12/1989US4887133 Printer
12/12/1989US4887104 Electrooptical light shutter device and printer apparatus using same
12/12/1989US4887103 Image forming apparatus and developing device thereof
12/12/1989US4887100 Droplet deposition apparatus
12/12/1989US4887099 Substrate for an ink jet recording head having electrodes formed on a glaze layer, and a recording head and apparatus using the substrate
12/12/1989US4887098 Thermal ink jet printer having printhead transducers with multilevelinterconnections
12/12/1989US4887096 Recording apparatus
12/12/1989US4887095 Image recording apparatus using several types of energy and recording process