Patents
Sitemap › B41 - Printing; Lining machines; Typewriters; Stamps › B41J - Typewriters; Selective printing mechanisms, i.e. mechanisms printing otherwise than from a forme; Correction of typographical errors › B41J 2 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
Patents for B41J 2 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed (138,049)
09/1990
09/05/1990EP0385047A1 Matrix print head with an electromagnet coil support
09/05/1990EP0384963A2 Apparatus for electrophotography representing half-tones
09/05/1990CN1045060A Foamed aluminium ink drum for typewriter and manufacturing process thereof
09/04/1990WO1990009889A1 High quality plotting technique for raster printing devices
09/04/1990US4954839 Self-aligning print head assembly with advanced shielding characteristics
09/04/1990US4954225 Method for making nozzle plates
09/04/1990US4953287 Thermal-bonding process and apparatus
09/04/1990CA2050909A1 High quality plotting technique for raster printing devices
09/04/1990CA1273676A1 Compensation for fine line prints
09/02/1990CA2010756A1 Apparatus for, and a method of, printing a pattern on a container component
08/1990
08/31/1990WO1990010089A1 New non-monocrystalline substance containing iridium, tantalum and aluminum
08/29/1990WO1990009888A1 Ink jet head having heat-generating resistor constituted of non-monocrystalline substance containing iridium, tantalum and aluminum, and ink jet device equipped with said head
08/29/1990WO1990009887A1 Ink jet head having heat-generating resistor constituted of non-monocrystalline substance containing iridium, tantalum and aluminum, and ink jet device equipped with said head
08/29/1990EP0384095A1 Matrix needle printhead of the pre-tensed type
08/28/1990US4953104 Page buffer for an electronic gray-scale color printer
08/28/1990US4953103 Page printer
08/28/1990US4953033 Image forming apparatus for forming images by use of fonts
08/28/1990US4952972 Life expiration detector for light source of image processing apparatus
08/28/1990US4952951 Electrophotographic recording apparatus
08/28/1990US4952949 LED printhead temperature compensation
08/28/1990US4952947 Ink discharge recovery device having at least one suction-applying conduit located at a particular position in a capping member and an ink jet recording apparatus incorporating the device
08/28/1990US4952944 Transfer recorder with heater
08/28/1990US4952943 Method of drop-on-demand ink jet recording on sized paper with exposed fibers
08/28/1990US4952942 Ink jet recording method with improved tone by recording yellow first
08/28/1990US4952085 Printer for generating images with high contrast gray and color tone gradations
08/28/1990US4952084 Head position controller for thermal printer
08/23/1990WO1990009566A1 Electric drop-jet generator
08/23/1990WO1990009286A1 Electromagnetic drive device for the printing needle of a needle printing head
08/23/1990WO1990009285A1 Wire dot printing head
08/23/1990WO1990009284A1 Process for manufacturing an ink jet head
08/23/1990DE3904441A1 Chopper circuit for driving the coils of electromagnets and/or stepper motors, especially for a matrix printer
08/22/1990EP0383583A1 Tonal printer
08/22/1990EP0383558A1 A pressure damper of an ink jet printer
08/22/1990EP0383555A1 Impact dot head for a printer
08/22/1990EP0383019A2 Ink jet recording head, ink jet recording apparatus and wiping method therefor
08/22/1990EP0382994A1 Oscillating frame for the printing elements of a matrix line printer
08/22/1990EP0382741A1 Device for monitoring droplet ejection from ejection nozzles of ink-printing heads.
08/22/1990EP0326568B1 Multilayer ink writing head
08/22/1990CN1044854A Recording head
08/21/1990US4951152 Circuit for controlling thermal array recording head
08/21/1990US4951098 Electrode structure for light emitting diode array chip
08/21/1990US4951071 Resistive nib ionographic imaging head
08/21/1990US4951067 Controlled ink drop spreading in hot melt ink jet printing
08/21/1990US4951066 Ink jet recording apparatus having a discharge orifice surface and a blade and rubbing member for cleaning the surface independently of each other
08/21/1990US4951065 Period varying beam recorder
08/21/1990US4951064 Thin film electroluminescent edge emitter assembly and integral packaging
08/21/1990US4951063 Pyrolytic silicon nitride insulative layer
08/21/1990US4950889 Chromatic and misalignment compensation in a multiple beam laser scanning system
08/21/1990US4950501 Thermal-print ribbons and method of making same
08/21/1990US4950092 Wire dot print head with a pair of guide nose halves
08/16/1990EP0382492A1 Photoelectric converting device for forming charge latent image
08/16/1990EP0382465A1 Drive circuit for driving a wire dot print head
08/16/1990EP0382423A2 Ink jet recording head, cartridge and apparatus
08/16/1990EP0382223A2 Correction of printing signal to be supplied to thermal head of thermal printer
08/16/1990EP0382023A1 Ink jet recording method and color ink jet recording device for practicing the same
08/16/1990EP0381740A1 Sublimation type thermal printer
08/16/1990EP0297108B1 Rapid-drying recording element for liquid ink marking
08/16/1990DE3940561A1 High speed thermal printing process - activating heating cells in printing head at under pressure when neighbouring one is operated
08/16/1990DE3904056A1 Elektromagnetische antriebsvorrichtung fuer eine drucknadel eines druckkopfes Electromagnetic drive device for a pressure needle of a printer head
08/14/1990US4949103 Direct electrostatic printing apparatus and method for making labels
08/14/1990US4949102 Bubble jet print head orifice construction
08/14/1990US4949101 Fluorescent printer head
08/14/1990US4949099 Fluorescent printer head using a single filamentary cathode
08/14/1990US4949097 Thermal printer
08/14/1990US4948427 Process for preparing ink for ink jet printer
08/14/1990US4948282 Drive device for a thermal transfer printer
08/09/1990WO1990008654A1 Ultrasonic dye image fusing
08/09/1990DE4009808A1 Ink reservoir control for ink printer - generates interpreter signal which activates cleaning and rinsing process
08/09/1990DE4003118A1 Thermodruckkopfsteuerung zum drucken serieller strichkodes Thermal print head control for printing serial bar codes
08/08/1990EP0381415A2 Image forming apparatus
08/08/1990EP0381395A1 Ink jet recording apparatus, ink jet recording head adapted for use therein , and ink jet recording method for use in said apparatus
08/08/1990EP0381392A2 Ink jet apparatus and ink jet head
08/08/1990EP0381363A2 Ink supply for a thermal ink jet pen
08/08/1990EP0381282A1 Method of and apparatus for the image-wise exposure of a lightsensitive medium by means of a number of light valves
08/08/1990EP0380886A2 Lens adjustment for a light emitting diode print head
08/08/1990EP0380567A1 Method and apparatus for optimizing phase and improving resolution in ink jet printers
08/08/1990EP0380526A1 Process and device for determining the printing position of the delivery nozzles of printing ink heads
08/08/1990EP0380510A1 Laser beam-induced colour printing.
08/08/1990EP0218686B1 Ink jet printing apparatus having ultrasonic print head cleaning system
08/08/1990EP0216911B1 Ink jet printing apparatus having an improved start-up system
08/08/1990CN1044544A Method for color image processing
08/07/1990US4947195 LED printer
08/07/1990US4947194 Liquid injection recording apparatus having temperature detecting means in a liquid passage
08/07/1990US4947193 Thermal ink jet printhead with improved heating elements
08/07/1990US4947192 Monolithic silicon integrated circuit chip for a thermal ink jet printer
08/07/1990US4947191 Ink jet recording apparatus
08/07/1990US4947190 Ink jet recording apparatus comprising mechanism for conveying sheet-like cleaning medium to a recording region, discharge recovery treatment method employed in the same, and cleaning sheet also employed in the same
08/07/1990US4947189 Bubble jet print head having improved resistive heater and electrode construction
08/07/1990US4947188 Thermal head and thermal recording apparatus using the same
08/07/1990US4947187 Ink jet printer nozzle clogging-preventive device
08/07/1990US4947184 Elimination of nucleation sites in pressure chamber for ink jet systems
08/07/1990US4947183 Edge type thermal printhead
08/07/1990US4947160 Multiplexed thin film electroluminescent edge emitter structure and electronic drive system therefor
08/07/1990US4947074 Piezoelectric element drive circuit
08/07/1990US4946299 Document processing apparatus
08/07/1990US4946297 Printing apparatus
08/07/1990US4946233 Light scanning apparatus
08/07/1990CA1272413A1 Electronic hand labeler
08/02/1990DE4001879A1 Needle matrix printer with adjustable print density - has print feed roller with different hardness segments to maintain print quality
08/01/1990EP0380366A2 Substrate for recording head and recording head
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