EP0318449A3 - A method and an arrangement for controlling the method of operation of a matrix printer - Google Patents

A method and an arrangement for controlling the method of operation of a matrix printer Download PDF

Info

Publication number
EP0318449A3
EP0318449A3 EP88850387A EP88850387A EP0318449A3 EP 0318449 A3 EP0318449 A3 EP 0318449A3 EP 88850387 A EP88850387 A EP 88850387A EP 88850387 A EP88850387 A EP 88850387A EP 0318449 A3 EP0318449 A3 EP 0318449A3
Authority
EP
European Patent Office
Prior art keywords
armature
magnetomotive force
return stroke
magnetic circuit
caused
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.)
Withdrawn
Application number
EP88850387A
Other languages
German (de)
French (fr)
Other versions
EP0318449A2 (en
Inventor
Olli Olavi Salminen
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.)
Facit AB
Original Assignee
Facit AB
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 Facit AB filed Critical Facit AB
Publication of EP0318449A2 publication Critical patent/EP0318449A2/en
Publication of EP0318449A3 publication Critical patent/EP0318449A3/en
Withdrawn legal-status Critical Current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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/22—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
    • B41J2/23—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
    • B41J2/30—Control circuits for actuators

Landscapes

  • Impact Printers (AREA)

Abstract

A matrix printer comprises a printing head which includes a plurality of printing needles (11) each having a respective electromagnetic maneuvering device (10) by means of which the needle, carried by a spring-biassed, movable armature (12), can be caused to carry out a working cycle, which includes a working stroke and a subsequent return stroke. The maneuvering device (10) is activated by temporarily lowering the magnetomotive force in the magnetic circuit (12,14) of the device from a previous, constant value. The previously attracted armature (12) will herewith commence to move in a direction away from the stationary part (14) of the magnetic circuit as a result of the spring force acting on the armature. The magnetomotive force is then caused to return to its previous value. For the purpose of reducing the noise and wear generated by the armature (12) and to reduce the tendency of the armature to rebound, the armature is slowed down during the final stage of its return stroke, by again lowering the magnetomotive force temporarily for a limited part of the time taken to effect the return stroke.
EP88850387A 1987-11-23 1988-11-09 A method and an arrangement for controlling the method of operation of a matrix printer Withdrawn EP0318449A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8704631A SE462081B (en) 1987-11-23 1987-11-23 KEEPING AND DEVICE FOR CONTROL OF THE WORKING PROCEDURE OF A NEEDLE PRINTER
SE8704631 1987-11-23

Publications (2)

Publication Number Publication Date
EP0318449A2 EP0318449A2 (en) 1989-05-31
EP0318449A3 true EP0318449A3 (en) 1989-07-26

Family

ID=20370351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88850387A Withdrawn EP0318449A3 (en) 1987-11-23 1988-11-09 A method and an arrangement for controlling the method of operation of a matrix printer

Country Status (3)

Country Link
EP (1) EP0318449A3 (en)
JP (1) JPH02533A (en)
SE (1) SE462081B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3463495B2 (en) * 1996-11-07 2003-11-05 豊田工機株式会社 Power steering device
US6801335B2 (en) * 2000-12-20 2004-10-05 Axiohm Transaction Solutions, Inc. Method of controlling impact printer noise

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2238605A1 (en) * 1972-08-05 1974-02-21 Vierling Oskar CONTROL ARRANGEMENT FOR PULSE-ACTUATED MAGNETIC DRIVE SYSTEMS
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
GB2195481A (en) * 1986-09-16 1988-04-07 Canon Kk Impact type recording apparatus
US4744684A (en) * 1985-11-05 1988-05-17 Canon Kabushiki Kaisha Impact-type recording apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2238605A1 (en) * 1972-08-05 1974-02-21 Vierling Oskar CONTROL ARRANGEMENT FOR PULSE-ACTUATED MAGNETIC DRIVE SYSTEMS
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
US4744684A (en) * 1985-11-05 1988-05-17 Canon Kabushiki Kaisha Impact-type recording apparatus
GB2195481A (en) * 1986-09-16 1988-04-07 Canon Kk Impact type recording apparatus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN, vol. 21, no. 11, April 1979, pages 4454-4456, New York, US; R.W. ARNOLD et al.: "Control of rebound energy in a coil-actuated hammer" *
IBM TECHNICAL DISCLOSURE BULLETIN, vol. 22, no. 10, March 1980, page 4348, New York, US; A.B. HABICH: "Print hammer rebound control" *

Also Published As

Publication number Publication date
EP0318449A2 (en) 1989-05-31
SE8704631D0 (en) 1987-11-23
JPH02533A (en) 1990-01-05
SE8704631L (en) 1989-05-24
SE462081B (en) 1990-05-07

Similar Documents

Publication Publication Date Title
GB786027A (en) Improvements relating to the printing of characters
US3741113A (en) High energy print hammer unit with fast settle out
EP0318449A3 (en) A method and an arrangement for controlling the method of operation of a matrix printer
US4098389A (en) Three position platen control mechanism
US4875347A (en) Method of actuation of needle selection latches of a knitting machine, and a device for performing the method
EP0408963A2 (en) Method for controlling the armature movement of switching magnets
US2580135A (en) Actuating means for fastener driving machines
GB1300787A (en) Selective printer hammer actuating mechanism
GB1295414A (en)
US3734013A (en) Multiple hammer magnetic pole piece block
US5193920A (en) Dot line printer with paper feed time controlling capability
JPS56164874A (en) Printing head of wire printer
GB712334A (en) Improvements in electro-magnetic impact tools
EP0365267A2 (en) A printing head for an impact dot printer
EP0318448A3 (en) A method and arrangement for monitoring the modus operandi of matrix printers
US3086134A (en) Device for the two-dimensional arrangement, variable according to pattern, of a plurality of elongated control means for multi-member machines
US3452850A (en) Type bar actuator comprising sequentially operating electromagnetically acting devices
JPS5451172A (en) Actuator for robot
RU2065360C1 (en) Electromagnetic press
DE69309255T2 (en) Dot matrix print head and associated printing device
ATE113902T1 (en) MATRIX PIN PRINT HEAD.
JPS5660254A (en) Printing device for booklet
JPS6018551B2 (en) printer carriage drive
JPS57212077A (en) Printer
SU647880A1 (en) Electromagnet for mosaic printers

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

RHK1 Main classification (correction)

Ipc: B41J 9/42

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT NL

17P Request for examination filed

Effective date: 19900126

17Q First examination report despatched

Effective date: 19910603

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19911015