FR2249538A5 - Printing machine hammer energy control - has adjustable time delay between hammers and impulse generator - Google Patents

Printing machine hammer energy control - has adjustable time delay between hammers and impulse generator

Info

Publication number
FR2249538A5
FR2249538A5 FR7337870A FR7337870A FR2249538A5 FR 2249538 A5 FR2249538 A5 FR 2249538A5 FR 7337870 A FR7337870 A FR 7337870A FR 7337870 A FR7337870 A FR 7337870A FR 2249538 A5 FR2249538 A5 FR 2249538A5
Authority
FR
France
Prior art keywords
hammers
time delay
generator
adjustable time
printing machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR7337870A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bull SA
Original Assignee
Societe Industrielle Honeywell Bull
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Societe Industrielle Honeywell Bull filed Critical Societe Industrielle Honeywell Bull
Priority to FR7337870A priority Critical patent/FR2249538A5/en
Application granted granted Critical
Publication of FR2249538A5 publication Critical patent/FR2249538A5/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J9/00—Hammer-impression mechanisms
    • B41J9/44—Control for hammer-impression mechanisms
    • B41J9/48—Control for hammer-impression mechanisms for deciding or adjusting hammer-drive energy

Landscapes

  • Impact Printers (AREA)

Abstract

The electrodynamic striker hammers are on a stationary mounting past which characters and printing support travel, being supplied by a generator regulated by a logic control unit. An adjustable time daly is mounted between hammers and generator, and means are included for controlling the currents supplied by the generator to the hammers as a function of certain factors. The time delay is controlled as a function of the same factors. The generator can be controlled by a memory unit containing data resulting from previous tests. The time delay can be a monostable rocker. Currents delivered can be a function of the number of copies to be printed simultaneously.
FR7337870A 1973-10-24 1973-10-24 Printing machine hammer energy control - has adjustable time delay between hammers and impulse generator Expired FR2249538A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7337870A FR2249538A5 (en) 1973-10-24 1973-10-24 Printing machine hammer energy control - has adjustable time delay between hammers and impulse generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7337870A FR2249538A5 (en) 1973-10-24 1973-10-24 Printing machine hammer energy control - has adjustable time delay between hammers and impulse generator

Publications (1)

Publication Number Publication Date
FR2249538A5 true FR2249538A5 (en) 1975-05-23

Family

ID=9126847

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7337870A Expired FR2249538A5 (en) 1973-10-24 1973-10-24 Printing machine hammer energy control - has adjustable time delay between hammers and impulse generator

Country Status (1)

Country Link
FR (1) FR2249538A5 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4103617A (en) * 1977-01-10 1978-08-01 Ncr Canada Ltd. - Ncr Canada Ltee Hammer energy impact control using read only memory
EP0011095A1 (en) * 1978-11-10 1980-05-28 International Business Machines Corporation Circuit arrangement for synchronizing the moment of the print hammer impact with the character type's arrival at the printing position
US4368666A (en) * 1980-01-12 1983-01-18 Hitachi Koki Company, Limited Method and circuit arrangement for controlling print timing in a printing apparatus
EP0083694A2 (en) * 1982-01-11 1983-07-20 International Business Machines Corporation Control system for timing hammers of impact printers
US4407193A (en) * 1980-06-16 1983-10-04 International Business Machines Corporation Solenoid impact print hammer with uniform free flight time
EP0137463A2 (en) * 1983-10-07 1985-04-17 Tokyo Electric Co., Ltd. Daisy wheel type printing device
FR2580230A1 (en) * 1985-04-11 1986-10-17 Centronics Data Computer MAGNETIC INTERACTION COMPENSATION CIRCUIT FOR PERCUSSION PRINTER
US4690575A (en) * 1982-02-17 1987-09-01 Canon Kabushiki Kaisha Device for controlling printing pressure according to the kind of ink ribbon being used
US4740094A (en) * 1982-12-27 1988-04-26 Canon Kabushiki Kaisha Print pressure control device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4103617A (en) * 1977-01-10 1978-08-01 Ncr Canada Ltd. - Ncr Canada Ltee Hammer energy impact control using read only memory
EP0011095A1 (en) * 1978-11-10 1980-05-28 International Business Machines Corporation Circuit arrangement for synchronizing the moment of the print hammer impact with the character type's arrival at the printing position
US4368666A (en) * 1980-01-12 1983-01-18 Hitachi Koki Company, Limited Method and circuit arrangement for controlling print timing in a printing apparatus
US4407193A (en) * 1980-06-16 1983-10-04 International Business Machines Corporation Solenoid impact print hammer with uniform free flight time
EP0083694A2 (en) * 1982-01-11 1983-07-20 International Business Machines Corporation Control system for timing hammers of impact printers
US4440079A (en) * 1982-01-11 1984-04-03 International Business Machines Corporation Control system for timing hammers of impact printers
EP0083694A3 (en) * 1982-01-11 1986-01-08 International Business Machines Corporation Control system for timing hammers of impact printers
US4690575A (en) * 1982-02-17 1987-09-01 Canon Kabushiki Kaisha Device for controlling printing pressure according to the kind of ink ribbon being used
US4740094A (en) * 1982-12-27 1988-04-26 Canon Kabushiki Kaisha Print pressure control device
EP0137463A2 (en) * 1983-10-07 1985-04-17 Tokyo Electric Co., Ltd. Daisy wheel type printing device
EP0137463A3 (en) * 1983-10-07 1986-07-02 Tokyo Electric Co., Ltd. Daisy wheel type printing device
FR2580230A1 (en) * 1985-04-11 1986-10-17 Centronics Data Computer MAGNETIC INTERACTION COMPENSATION CIRCUIT FOR PERCUSSION PRINTER

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Legal Events

Date Code Title Description
ST Notification of lapse