GB1179419A - Flying Hammer Solenoid Systems for High Speed Printers - Google Patents

Flying Hammer Solenoid Systems for High Speed Printers

Info

Publication number
GB1179419A
GB1179419A GB46000/66A GB4600066A GB1179419A GB 1179419 A GB1179419 A GB 1179419A GB 46000/66 A GB46000/66 A GB 46000/66A GB 4600066 A GB4600066 A GB 4600066A GB 1179419 A GB1179419 A GB 1179419A
Authority
GB
United Kingdom
Prior art keywords
hammer
adjustment
current
potentiometer
electromagnet
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
GB46000/66A
Inventor
Roman Derc
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.)
Fujitsu Services Ltd
Original Assignee
Fujitsu Services Ltd
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 Fujitsu Services Ltd filed Critical Fujitsu Services Ltd
Priority to GB46000/66A priority Critical patent/GB1179419A/en
Priority to FR124261A priority patent/FR1540763A/en
Priority to NL6713930A priority patent/NL6713930A/xx
Priority to US675668A priority patent/US3507213A/en
Publication of GB1179419A publication Critical patent/GB1179419A/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
    • B41J9/42—Hammer-impression mechanisms with anti-rebound arrangements
    • 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

Landscapes

  • Impact Printers (AREA)

Abstract

1,179,419. Selective printing. INTERNATIONAL COMPUTERS Ltd. 13 Oct., 1967 [14 Oct., 1966], No. 46000/66. Heading B6F. [Also in Division H3] Hammer impression mechanism.-An electromagnetically operated hammer mechanism 12, 16 is accelerated from its normal position by a short current pulse and the hammer effects impression by momentum and rebounds: during the return of the hammer back to its normal position the electromagnet is energized again with a damping current effective to cause deceleration. The operating current is derived from a condenser C1 which is discharged through the coil 30 of the magnet 10 via an electronic switch, e.g. silicon controlled rectifier SCR1 which is turned on by an incoming signal at 31. On turning off, current continues to flow around a loop formed by the electromagnet 30, an inductor L1 and a diode D4 so that on discharge of the condenser a loop current is set up which decays to provide the required damping. Adjustment of impact.-Individual adjustment for each hammer system is achieved by adjustment of potentiometer R5, while potentiometer R6 permits a common adjustment of all hammer systems.
GB46000/66A 1966-10-14 1966-10-14 Flying Hammer Solenoid Systems for High Speed Printers Expired GB1179419A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB46000/66A GB1179419A (en) 1966-10-14 1966-10-14 Flying Hammer Solenoid Systems for High Speed Printers
FR124261A FR1540763A (en) 1966-10-14 1967-10-12 High Speed Moving Hammer Solenoid Systems
NL6713930A NL6713930A (en) 1966-10-14 1967-10-13
US675668A US3507213A (en) 1966-10-14 1967-10-16 High speed flying hammer solenoid systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB46000/66A GB1179419A (en) 1966-10-14 1966-10-14 Flying Hammer Solenoid Systems for High Speed Printers

Publications (1)

Publication Number Publication Date
GB1179419A true GB1179419A (en) 1970-01-28

Family

ID=10439437

Family Applications (1)

Application Number Title Priority Date Filing Date
GB46000/66A Expired GB1179419A (en) 1966-10-14 1966-10-14 Flying Hammer Solenoid Systems for High Speed Printers

Country Status (3)

Country Link
US (1) US3507213A (en)
GB (1) GB1179419A (en)
NL (1) NL6713930A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0024619A1 (en) * 1979-08-20 1981-03-11 Siemens Aktiengesellschaft Damping device for the electromagnetic print hammer drive in a print-hammer arrangement
DE2953825C1 (en) * 1979-08-20 1983-12-29 Siemens AG, 1000 Berlin und 8000 München Control device for the electromagnetic drive of a print hammer

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631797A (en) * 1969-10-06 1972-01-04 Ncr Co Hammer for high-speed printer
BE758496A (en) * 1969-11-20 1971-04-16 Burroughs Corp PRINTING HAMMER AND DEVICE FOR ITS ACTUATION
US3711804A (en) * 1971-04-15 1973-01-16 Ibm Magnetically restorable high speed print hammer
US3741113A (en) * 1971-06-25 1973-06-26 Ibm High energy print hammer unit with fast settle out
US3747521A (en) * 1971-06-25 1973-07-24 Ibm Low cost hammer unit
US3893390A (en) * 1972-05-01 1975-07-08 Honeywell Inf Systems Printer with rectilinear type-carrying belt
NL157521B (en) * 1973-10-18 1978-08-15 Nederlanden Staat DEVICE FOR APPLYING A CODE ON A DOCUMENT.
US3964384A (en) * 1974-03-11 1976-06-22 Sperry Rand Corporation High speed printing mechanism
US4102265A (en) * 1975-10-15 1978-07-25 Xerox Corporation Hammer driver controller for impact printers
US4062285A (en) * 1975-10-15 1977-12-13 Xerox Corporation Hammer driver controller for impact printers
US4037208A (en) * 1976-05-03 1977-07-19 Xerox Corporation Hammer intensity selection apparatus for serial printer
GB2023353B (en) * 1978-06-19 1982-10-06 Ibm Actuator for a printer
US4273039A (en) * 1979-08-03 1981-06-16 Hewlett Packard Company Impact printing apparatus and method using reluctance switching and a closed loop drive system
US4348119A (en) * 1980-11-06 1982-09-07 General Electric Company Bounce control system for moving coil printing element
US4396304A (en) * 1981-11-24 1983-08-02 International Computers Limited Print head and drive circuit

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045148A (en) * 1962-07-17 Ignition system with transistor control
NL283728A (en) *
FR1204680A (en) * 1958-06-02 1960-01-27 Bull Machines Sa Improvements to electronic trigger devices
US3183830A (en) * 1960-12-27 1965-05-18 Rca Corp Print registration control means in high speed printers
US3199650A (en) * 1961-08-02 1965-08-10 Ibm Hammer with dampening means for high speed printer
US3140428A (en) * 1961-08-21 1964-07-07 Jr Francis H Shepard Solenoid firing circuit
DE1237816B (en) * 1963-08-24 1967-03-30 Ibm Deutschland Print hammer drive for high-speed printer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0024619A1 (en) * 1979-08-20 1981-03-11 Siemens Aktiengesellschaft Damping device for the electromagnetic print hammer drive in a print-hammer arrangement
DE2933616A1 (en) 1979-08-20 1981-03-26 Siemens AG, 1000 Berlin und 8000 München DAMPING DEVICE FOR THE ELECTROMAGNETIC DRIVE OF THE PRINT HAMMER IN A PRINT HAMMER ARRANGEMENT
DE2953825C1 (en) * 1979-08-20 1983-12-29 Siemens AG, 1000 Berlin und 8000 München Control device for the electromagnetic drive of a print hammer

Also Published As

Publication number Publication date
NL6713930A (en) 1968-04-16
US3507213A (en) 1970-04-21

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