| Patents for B41J 2 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed (138,049) |
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| 10/18/1977 | US4054361 Beam scanning device with line image formed by and reflected to optical element |
| 10/18/1977 | US4054360 Apparatus for removing the scanning error due to an error in parallelism of a rotary polyhedral mirror |
| 10/11/1977 | US4053902 Fluid pump for a writing device |
| 10/11/1977 | US4053901 Fluid pump for a writing device having an air ejector feature |
| 10/11/1977 | US4053040 Serial wire matrix printer |
| 10/04/1977 | US4052714 Electrographic recording head having an integral recording electrode cleaning means |
| 10/04/1977 | US4051941 Matrix print head with improved armature retainer |
| 10/04/1977 | US4051940 Mosaic needle printer head using plunger armature solenoid arrangements |
| 09/27/1977 | US4051538 Ink jet copier |
| 09/27/1977 | US4051536 Electronic halftone imaging system |
| 09/27/1977 | US4051485 Printing apparatus |
| 09/27/1977 | US4050563 Apparatus for selectable font printing |
| 09/27/1977 | US4050379 Inking apparatus |
| 09/27/1977 | US4050377 High speed printer with heated aperture board |
| 09/20/1977 | US4050078 Automatic nozzle cleaning system for ink ejection printer |
| 09/20/1977 | US4050077 Liquid droplet supplying system |
| 09/20/1977 | US4050076 Deflection means including a deflection electrode mounted on a travelling carriage in an ink jet system printer |
| 09/20/1977 | US4049108 Actuator for a matrix print head |
| 09/20/1977 | US4049107 Printing devices or heads for printers or the like and a process for making such a printing head |
| 09/13/1977 | US4048665 Driver circuit for printer electromagnet |
| 09/13/1977 | US4048639 Ink jet nozzle with tilted arrangement |
| 09/13/1977 | US4048470 Exothermic printing head |
| 09/13/1977 | US4047606 Head for needle printer |
| 09/06/1977 | US4047186 Pre-aimed nozzle for ink jet recorder and method of manufacture |
| 09/06/1977 | US4047185 Multi-jet ink printer using star-wheel jet formers |
| 09/06/1977 | US4047184 Charge electrode array and combination for ink jet printing and method of manufacture |
| 09/06/1977 | US4047183 Method and apparatus for controlling the formation and shape of droplets in an ink jet stream |
| 09/06/1977 | US4046471 Dual mode electrophotographic apparatus having dual function printing beam |
| 09/06/1977 | US4046303 Method of making needle guide devices for mosaic printers |
| 09/06/1977 | US4046244 Impact matrix print head solenoid assembly |
| 09/06/1977 | US4046074 Non-impact printing system |
| 09/06/1977 | US4046073 Ultrasonic transfer printing with multi-copy, color and low audible noise capability |
| 08/30/1977 | US4045802 Ink ejection printing apparatus comprising automatically actuated ejection orifice cap |
| 08/30/1977 | US4045801 Ink ejection head for printer |
| 08/30/1977 | US4045770 Method and apparatus for adjusting the velocity of ink drops in an ink jet printer |
| 08/30/1977 | US4045397 Printing ink compositions for jet printing on glazed ceramic surfaces |
| 08/30/1977 | US4044879 Arrangement for recording characters using mosaic recording mechanisms |
| 08/30/1977 | US4044878 Matrix printer head having a removable assembly |
| 08/30/1977 | US4044668 Print hammer mechanism |
| 08/16/1977 | US4042937 Ink supply for pressurized ink jet |
| 08/16/1977 | US4042936 Electrosensitive recording method |
| 08/09/1977 | US4040737 Method and arrangement for eliminating ghost image |
| 08/02/1977 | US4039832 Apparatus for thermographic duplication of information comprising a curve or cam member for axial movement of dye carrier |
| 08/02/1977 | US4039066 Forgery-resistant impact printing with matrix printer |
| 08/02/1977 | US4039065 Thermal printer |
| 07/26/1977 | US4038668 Apparatus for producing smooth and continuous graphic displays from intermittently sampled data |
| 07/26/1977 | US4038667 Ink jet ink supply system |
| 07/26/1977 | US4038665 Recording with donor transfer of magnetic toner |
| 07/26/1977 | US4038517 Environmentally and wear protected glass substrate thin film thermal printheads |
| 07/26/1977 | US4038516 Thermal printing head |
| 07/26/1977 | US4037704 Actuator for a wire matrix printer and method of making |
| 07/26/1977 | US4037315 Thermal printing head |
| 07/19/1977 | US4037230 Timing circuit for ink jet system printer |
| 07/12/1977 | US4035812 Ink jet recorder and charge ring plate therefor with reduced deplating current |
| 07/12/1977 | US4035811 Ink jet recorder and catcher therefor |
| 07/12/1977 | US4035810 Magnetic interpositive method with electrostatic imaging |
| 07/12/1977 | US4035671 Piezoelectric wire matrix printer head |
| 07/12/1977 | US4035607 Integrated heater element array |
| 07/12/1977 | US4035244 Electric recording process |
| 07/12/1977 | US4034842 Arrangement for driving a printing head along a printing line |
| 07/12/1977 | US4034841 Print wire actuating device for a dot matrix printer |
| 07/05/1977 | US4034380 Ink ejection apparatus for printer |
| 07/05/1977 | US4034379 Ink jet writing process and apparatus |
| 07/05/1977 | US4034187 Thermal printing head |
| 07/05/1977 | US4033444 System for extending the life of a pin printer using pin shifting |
| 07/05/1977 | US4033443 Logic circuit for grey-tone printer |
| 07/05/1977 | US4033255 Print hammer actuator for dot matrix printers |
| 06/28/1977 | US4032978 Pseudo halftone print generator and method |
| 06/28/1977 | US4032929 High density linear array ink jet assembly |
| 06/28/1977 | US4032928 Wideband ink jet modulator |
| 06/28/1977 | US4032924 Distortion reduction in ink jet system printer |
| 06/28/1977 | US4031992 Printing device |
| 06/21/1977 | US4031563 Jet drop recording head having an improved porous deflection ribbon |
| 06/21/1977 | US4031561 Startup apparatus and method for jet drop recording with relatively movable charge plate and orifice plate |
| 06/21/1977 | US4031519 Printer |
| 06/21/1977 | US4030806 Scanning optical system |
| 06/21/1977 | US4030590 Spacing and connecting a plurality of print heads |
| 06/21/1977 | US4030588 Printer |
| 06/21/1977 | US4030587 Computer terminal |
| 06/21/1977 | US4030408 Thermal printer head |
| 06/14/1977 | US4030107 Electrographic recording devices employing electrostatic induction electrodes |
| 06/14/1977 | US4030105 Technique of character generation on magnetic tapes |
| 06/14/1977 | US4030104 Thermo-magnetic image transfer apparatus |
| 06/14/1977 | US4029190 Font conversion apparatus |
| 06/14/1977 | US4029006 Method and apparatus for printing indicia on a continuous, elongate, flexible three-dimensional member |
| 06/07/1977 | US4028711 Method of and device for electrostatic printing |
| 06/07/1977 | US4027762 Dot printer |
| 06/07/1977 | US4027761 Matrix print head impact energy control |
| 05/31/1977 | US4027310 Ink jet line printer |
| 05/31/1977 | US4027309 Ink jet printer apparatus and method of printing |
| 05/31/1977 | US4027308 Method and apparatus for forming droplets from a magnetic liquid stream |
| 05/31/1977 | US4027287 Storage-controlled output device |
| 05/31/1977 | US4026439 Precision fluid dispensing and mixing system |
| 05/31/1977 | US4026402 Incremental line printer |
| 05/31/1977 | US4026401 Circuitry for generating a plurality of independent ink print control signals |
| 05/24/1977 | US4025928 Unitary ink jet and reservoir |
| 05/24/1977 | US4025927 Multilayer magnetic image recording head |
| 05/24/1977 | US4025926 Phase synchronization for ink jet system printer |
| 05/24/1977 | US4025925 Multi-nozzle ink jet printer and method of printing |
| 05/24/1977 | US4024941 Dot matrix type serial printer |