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 23 - Power drives for actions or mechanisms
Patents for B41J 23 - Power drives for actions or mechanisms (1,871)
01/1983
01/18/1983US4368994 Single servo driven printer
12/1982
12/01/1982EP0065928A2 Method for driving a type disk in a disk printer and disk printer therefore
11/1982
11/24/1982EP0065103A2 Methods of operating an electro-magnetic transducer and apparatus therefor
11/02/1982US4357116 Printer control assembly
10/1982
10/05/1982US4352576 Serial printer having a single drive motor
07/1982
07/27/1982CA1128447A1 Method and apparatus for connecting and disconnecting a motor and a print element
07/13/1982CA1127452A1 Bar code printing mechanism
07/07/1982EP0055329A1 Electrostatic clutch-operated printing mechanism
06/1982
06/16/1982EP0053682A2 Print hammer actuating device for a type chip cartridge printer
06/15/1982US4334790 Type disc typewriter with electronic positioning control
06/01/1982US4332489 Print hammer actuating device
05/1982
05/19/1982EP0052011A1 Dot printer and method of using the same
05/18/1982US4330218 Apparatus for connecting and disconnecting a motor and a print element by pivoting a ribbon cartridge
04/1982
04/27/1982CA1122477A1 Printer
01/1982
01/13/1982EP0043664A1 Impact printers
01/06/1982EP0042951A1 Powered cord reeling device with automatic cord tension-controlled disengagement and typewriter carriage return mechanism using same
12/1981
12/02/1981EP0040671A1 Drive apparatus
10/1981
10/21/1981EP0038225A2 Electric typewriter
09/1981
09/08/1981US4287825 Printing control system
08/1981
08/26/1981EP0034484A1 Printing apparatus
08/11/1981US4283150 Typewriter
07/1981
07/14/1981CA1105113A1 Keyboard actuatable with the aid of the fingers of at least one hand
06/1981
06/26/1981EP0024429A4 Linear actuator.
05/1981
05/12/1981US4266479 Multi-function mechanical printer drive means
05/05/1981US4265551 Drive for transporting and reversing an ink ribbon, and for withdrawing the printing head in printing devices
03/1981
03/31/1981US4259026 Dot printer having concentric driving cams
03/17/1981CA1097579A1 Typewriter key action
03/11/1981EP0024429A1 Linear actuator
03/10/1981US4255063 Electromagnetic line spacing device
02/1981
02/17/1981US4250808 Printer
02/10/1981US4249829 Daisy wheel typewriter
01/1981
01/07/1981EP0020979A1 Method and device for engagement and disengagement of a motor and a print-member
11/1980
11/04/1980US4232217 Stepper motor drive for a mechanical camshaft
09/1980
09/23/1980CA1086132A1 High speed printing apparatus
09/04/1980WO1980001861A1 Linear actuator
08/1980
08/26/1980CA1084436A1 Typing machine
08/12/1980US4217056 Type action for a power-driven typewriter
05/1980
05/06/1980US4201489 Keyboard actuatable with the aid of the fingers of at least one hand
05/01/1980WO1980000817A1 Drive and transmission mechanism of motions for a typewriter
04/1980
04/15/1980US4198170 Single element typing for left to right or right to left letter feeding
04/08/1980CA1075301A1 Fluid impulse printer
03/1980
03/04/1980US4191483 Typewriter key action
02/1980
02/06/1980EP0007332A1 Attachment for remote control of a keyboard
11/1979
11/27/1979US4175876 Drive mechanism for printer
10/1979
10/30/1979US4172671 High speed printer having a pneumatically actuated printing head
07/1979
07/24/1979US4161912 Miniature printer
07/10/1979CA1058135A1 Tensionless retractor
03/1979
03/20/1979US4145146 Recording medium feeding apparatus for printer
02/1979
02/27/1979US4141658 Attachment for remote control of a keyboard
01/1979
01/24/1979EP0000413A1 Drive mechanism for printers, either for progressing or reversing an ink ribbon, or for retracting the printing head
01/16/1979CA1046445A1 High speed reversing drive mechanism
01/11/1979WO1979000015A1 Attachment for remote control of a keyboard
01/09/1979US4133422 Typing machine
12/1978
12/05/1978US4128345 Fluid impulse matrix printer
09/1978
09/12/1978US4113081 Mechanism for actuating a member of a typewriter
08/1978
08/29/1978US4109778 Transmission mechanism, notably for typewriters
08/29/1978CA1037403A1 Impression control apparatus for typewriters
03/1978
03/28/1978US4081068 Keyboard actuable with the aid of the fingers of at least one hand
11/1977
11/08/1977US4057199 Tensionless retractor
06/1977
06/07/1977US4027763 Keyboard for office machines
05/1977
05/17/1977US4023665 Power driven typewriter
04/1977
04/26/1977US4019615 Low inertia impact printing means
11/1976
11/16/1976US3992688 Rotary armature solenoid
09/1976
09/21/1976US3981385 Typing machine key action
08/1976
08/24/1976US3976181 Typing machine repeat key action
08/10/1976US3973663 Typewriter power roll construction and mounting
08/10/1976US3973486 Printer
08/03/1976US3972280 Apparatus for time sharing of horizontal and vertical advance
07/1976
07/06/1976US3967715 Intermittent drive system for typewriters
05/1976
05/18/1976US3957150 Impression control apparatus for typewriters
03/1976
03/02/1976US3941228 Electromagnetically operated printer
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