Patents for B41J 9 - Hammer-impression mechanisms (955)
02/1984
02/15/1984EP0100436A1 Linear solenoid device
02/14/1984US4430936 Striker mechanism for a high speed serial printer
02/14/1984US4430935 Printer
01/1984
01/31/1984US4429342 Impact printing device with an improved print hammer
01/31/1984US4428284 Band and hammer dot matrix printer
01/24/1984US4427312 Printwheel detent
01/24/1984US4426930 Compact band printer
01/18/1984EP0098323A1 Oscillation mechanism for reciprocating machine parts, in particular for a support of print elements in a matrix line printer
01/17/1984US4425845 Bank for accommodating several print ram units
01/11/1984EP0097757A2 Dot matrix printing apparatus
01/03/1984US4423972 Serial printer
01/03/1984US4423675 Magnetic circuit and print hammer
01/03/1984CA1159715A1 Electromagnetically operatable ram actuator, in particular for impact printers
01/03/1984CA1159710A1 Printer system having parity checking of print hammers using software control
12/1983
12/27/1983US4422784 Solenoid-type hammer assembly for impact printer
12/27/1983US4422377 Print hammer and coil assembly
12/27/1983CA1159386A2 Printing apparatus
12/21/1983EP0096462A1 Printing head driving apparatus
12/20/1983US4421430 Dot printer
12/20/1983US4421025 Spring mounted torsionally rigid print hammer mechanism
11/1983
11/22/1983US4416556 Type carrier for use in impact-type printing machines
11/15/1983CA1156957A1 Selection controlled print impression control for single element impact printers
11/15/1983CA1156956A1 Counterbalanced bidirectional shuttle drive having linear motor
11/08/1983US4414496 Electronic typewriter and its control apparatus
10/1983
10/25/1983US4412197 Electromagnetic ram actuator
10/04/1983US4408129 Constant energy drive circuit for electromagnetic print hammers
10/04/1983US4407194 Print hammer
10/04/1983US4407193 Solenoid impact print hammer with uniform free flight time
09/1983
09/27/1983US4406223 Print hammer release mechanism
09/20/1983US4405246 Hammer device for printer
09/20/1983US4404901 Striker assembly for line printers
09/20/1983CA1153977A1 Printer
09/07/1983EP0087560A2 Control system for limiting the number of simultaneously activated print hammers
09/06/1983CA1153243A1 Impact printer hammer flight time and velocity sensing means
08/1983
08/30/1983US4401026 Free flight hammer for impact printer
08/23/1983US4399748 Multiplexed hammer dot band matrix printer
08/16/1983US4398460 Printer
08/09/1983US4397234 Electromagnetic print hammer coil assembly
08/02/1983US4395945 Hammer bank assembly
07/1983
07/26/1983CA1150658A1 High speed printing system
07/20/1983EP0083694A2 Control system for timing hammers of impact printers
07/19/1983US4393967 Semiconductors
07/19/1983US4393769 Electrostatic clutch-operated printing mechanism
07/19/1983CA1150338A1 Electromagnetic release mechanism, in particular for the actuation of print hammers
07/12/1983US4392423 Printing hammer driving apparatus
07/06/1983EP0082929A2 Print hammer coil with a device for screening the magnetic field and for carrying off the heat
07/05/1983CA1149310A1 Control system and method for testing print hammers in a high speed printer
06/1983
06/29/1983EP0082799A2 Driver circuit for printers, in particular for matrix printers of the needle or hammer type
06/29/1983EP0082334A2 Print hammer mechanism
06/29/1983EP0082330A2 Hammer arrangement and control for dot band matrix printer
06/21/1983US4389131 Printer with electromagnetic drive yokes
06/21/1983US4388861 Bank for accommodating several print hammer units
06/14/1983CA1148101A1 Electrostatic clutch
06/07/1983US4386565 Printer apparatus using electromagnet
06/07/1983US4386563 Printing system having staggered hammer release
05/1983
05/24/1983US4384520 Device for controlling solenoids of high speed printer
05/03/1983CA1145614A1 Hammer for dot matrix printer
05/03/1983CA1145612A1 Printer having variable hammer release drive
04/1983
04/26/1983US4381532 Constant energy drive circuit for electromagnetic print hammers
04/12/1983US4379428 Hammer locating and operational means
04/12/1983CA1144419A1 Printing means
03/1983
03/22/1983CA1143213A1 Print hammer mechanism having dual electro-magnetic coils and pole pieces
03/15/1983US4376411 Print hammer limit control
03/09/1983EP0073257A1 Actuation device for a type printer
02/1983
02/16/1983EP0071661A1 Control device for a chain printer with a plurality of print hammers
02/15/1983US4373440 Hammer bank assembly
02/15/1983US4373439 Character ring-selecting type printer
02/09/1983EP0071313A1 Solenoid drive circuit
02/01/1983US4371857 Electromagnetically operable ram actuator in particular for impact printers
01/1983
01/26/1983EP0016816B1 An apparatus and method for producing cyclic motion
01/25/1983CA1139988A1 Self-aligning spring actuator hammer mechanism
01/18/1983US4368666 Method and circuit arrangement for controlling print timing in a printing apparatus
01/11/1983US4367677 Electromagnetic wire printer
01/11/1983CA1139152A1 Counterbalanced bidirectional shuttle drive
01/04/1983CA1139004A1 Electro-magnetic print hammer
01/04/1983CA1138803A1 Print hammer drive circuit with compensation for voltage variation
01/04/1983CA1138802A1 Shift sensitive dual velocity mechanism for a printer
12/1982
12/29/1982EP0067937A2 Multi-chopping drive circuit for an electromagnetic print hammer or the like
12/29/1982EP0067936A2 Chopping drive circuit for an electromagnetic print hammer or the like
12/21/1982CA1138120A1 Printer, provided with an impact device comprising a transducer
12/21/1982CA1137912A1 Printing apparatus
12/14/1982CA1137355A1 Print hammer for high speed impact printer
12/07/1982US4362787 Flag strip for use in print hammers
12/07/1982US4362405 Moving coil type printing head
12/01/1982EP0065784A2 Lever actuator comprising a longitudinal-effect electroexpansive transducer and designed to prevent actuation from degrading the actuator
12/01/1982EP0065620A2 Self restoring pivoting means and print hammer using same
11/1982
11/24/1982EP0065102A2 Hammer and print elements in a dot matrix printer
11/23/1982US4360088 Dynamic rebound-resonance suppression
11/23/1982US4359937 Dot matrix printer
11/23/1982CA1136198A1 Springless print head actuator
11/17/1982EP0064632A2 Print hammer device
11/16/1982US4359289 Counterbalanced bidirectional shuttle drive having linear motor
11/09/1982US4357867 Multiple coil hammer actuator system
11/09/1982CA1135317A1 High-speed, high-efficiency electromagnetic print hammer actuator
11/03/1982EP0063784A2 Print hammer device with a plunger-type electromagnet system having an electro-optical sensor
10/1982
10/27/1982EP0063233A2 Electromagnetic driving element
10/20/1982EP0062765A2 Bank for the receipt of several print hammer units
10/12/1982US4353656 Moving coil, multiple energy print hammer system including a closed loop servo
10/12/1982US4353655 Electronic typewriter and its control apparatus
10/12/1982CA1133562A1 Moving permanent magnet limited motion actuator
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