Patents for B41J 9 - Hammer-impression mechanisms (955)
03/1987
03/17/1987CA1219169A1 Single piece hammer module
03/03/1987CA1218561A1 Differential lever actuator including differentially force-transmitting members which are not liable to break
02/1987
02/17/1987US4644477 Printing apparatus
02/17/1987US4643600 Stabilizing device for hammer bounding at printers
02/04/1987EP0210636A1 Assembly of electromagnetic hammer actuators for impact printers
02/03/1987US4641219 Low noise solenoid drive
01/1987
01/28/1987EP0210000A1 Impact printer
01/28/1987CN86103729A Knocking type typewriter
01/27/1987CA1217245A1 Character spacing circuit for controlling print hammer firing
01/21/1987EP0209291A1 Impact printer
01/20/1987CA1216772A1 Print hammer mechanism having intermediate pivot fulcrum
01/07/1987EP0207781A1 Printer impact mechanism
01/07/1987EP0207780A1 Impact printer
12/1986
12/31/1986WO1986007569A1 Print element band for impact printer
12/30/1986EP0206701A1 Print device for typewriters and like printing machines
12/23/1986CA1215666A1 Variable impact printing means
12/16/1986US4629518 Carburization and heat treatment process for a machine part
12/16/1986US4629345 Printer cartridge and cartridge retaining means
12/09/1986US4627752 Daisy wheel printing device with variable hammer delay
12/09/1986US4627344 Impact printer with magnetic interaction compensation
11/1986
11/25/1986US4624588 Full field MICR encoder
10/1986
10/29/1986EP0199185A1 Printing device
10/28/1986US4619536 Printing hammer assembly
10/07/1986US4615631 Printing apparatus with means for indicating the selected printing pitch and paper advancing pitch
09/1986
09/30/1986US4614952 Pen type multi-color recording device
09/23/1986CA1211735A1 Impact hammer
09/16/1986US4611649 Method of making multiple magnet core units
09/16/1986US4611536 Apparatus for producing a reset pulse for a printer
09/02/1986CA1210638A1 Microprocessor-controlled printing mechanism having an opto-electronic sensor
08/1986
08/06/1986EP0189792A2 Wire matrix printer apparatus
08/06/1986EP0189568A1 Print hammer and drive for daisy wheel printer
08/05/1986US4603985 Backstop and damping apparatus for actuator
07/1986
07/29/1986CA1208488A1 Wire matrix print head apparatus
07/29/1986CA1208487A1 Ballistic print wire actuator using a telescopic armature
07/01/1986US4597328 Print hammer flight time control system
06/1986
06/17/1986US4595304 For impacting onto a platen in a printer
06/04/1986EP0183095A2 Print hammer flight time control system
05/1986
05/27/1986US4590853 Modular print head
05/20/1986US4589787 Printer with rotatable print band
05/13/1986CA1204336A1 Printer head for a dot line printer
05/07/1986EP0180060A1 Self-timing and self-compensating print wire actuator driver
05/07/1986EP0179929A1 Electromagnetic drive with a rocking element, in particular for an impact printer
04/1986
04/29/1986US4584937 Long release coil hammer actuating mechanism
04/22/1986CA1203424A1 Multicolor cross-hammer printer
04/09/1986EP0176618A1 Electromagnetic drive, in particular for an impact printer
04/01/1986US4579056 Printing mechanism
04/01/1986US4579055 Printer having drive and control system for metal band holding print elements
03/1986
03/19/1986EP0174381A1 Print hammer bank of modular construction
03/18/1986US4576492 Multi-stage printer
02/1986
02/19/1986EP0171526A1 Backstop and damping apparatus for actuator
02/18/1986CA1200831A1 Electromagnetic ram actuator
02/11/1986US4570130 Input controller circuit apparatus for phase lock loop voltage controlled oscillator
02/11/1986US4569607 Printing hammer rebound control
02/11/1986CA1200430A1 Printing head driving apparatus
02/04/1986US4568208 Printer
01/1986
01/29/1986EP0169196A1 Lever driven hammer for dry film printer
01/21/1986US4565128 Rotary wheel printer
01/21/1986US4565127 Mechanism for reciprocating a line printer shuttle
01/15/1986EP0168208A2 Electronic printer
01/14/1986CA1199418A1 Scan correction for a line printer having multi-pitch type carriers
01/14/1986CA1199218A1 Print hammer limit control
01/08/1986EP0166847A1 A carburization and heat treatment process for a machine part
01/07/1986CA1199123A1 Printing apparatus with variable impact pressure
01/02/1986EP0166196A1 Printer having drive and control system for metal band holding print element
12/1985
12/31/1985US4561790 Wire matrix print head apparatus
12/24/1985US4560294 Printer with multiple type groups
12/17/1985US4558965 Printing apparatus controlling advancement of printing paper, actuation of a hammer, and advancement of an ink ribbon
12/10/1985US4557193 Printing device
12/10/1985US4557192 Self restoring pivoting means and print hammer using same
11/1985
11/19/1985US4553864 Multicolor cross-hammer printer
11/05/1985US4550659 Hammer driving circuit for a dot system line printer
10/1985
10/22/1985US4548134 Dot image buffer and dot sequence scrambler for dot matrix line printer
10/15/1985US4547087 Microprocessor-controlled printing mechanism having an opto-electronic sensor
10/09/1985EP0157624A2 Printer head bank and method of manufacturing the same
10/02/1985EP0156391A1 Daisy wheel typewriter
10/01/1985US4543884 Shuttle type line printer
09/1985
09/17/1985US4541746 Initializing apparatus for daisy wheel printer
09/10/1985US4540966 Multiple magnet core unit
09/03/1985US4538930 Adaptive print hammer damper
08/1985
08/28/1985EP0152732A1 A fault protection system for a line printer
08/13/1985US4534664 Printing mechanism having a plurality of type plates
08/06/1985US4532862 Print hammer bank
08/01/1985WO1985003257A1 Lever driven hammer for dry film printer
07/1985
07/30/1985US4531848 Dot matrix print head
07/23/1985US4530280 Printing hammer assembly with a hammer dampener comprising two opposed permanent magnets
07/16/1985US4529326 Print hammer for printers and typewriters
07/09/1985US4527920 Print hammer firing compensation circuit for printer velocity variation
07/09/1985US4527469 Dot matrix print actuator
07/09/1985CA1190088A1 Lever actuator comprising a longitudinal-effect electroexpansive transducer and designed to prevent actuation from degrading the actuator
07/02/1985US4527139 Electromagnetic ram actuator
06/1985
06/26/1985EP0146248A2 Full field micro encoder
06/26/1985EP0145961A1 Printing apparatus
06/25/1985US4525086 Solenoid actuated pivotal printer hammer mechanism
06/19/1985EP0144833A2 Actuating mechanism, e.g. for matrix line printers
06/18/1985US4524259 Print hammer assembly method
06/18/1985US4523867 Bi-directional drive print wire actuator with forward-velocity and reverse-position closed loop feedback control
06/11/1985US4522122 Fast impact hammer for high speed printer
06/05/1985EP0143575A2 Variable impact printing apparatus and method
05/1985
05/21/1985US4518887 Differential lever actuator including differentially force-transmitting members which are not liable to break
05/21/1985CA1187440A1 Impact printing device with an improved print hammer
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