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GB1338009A - Printer head assembly - Google Patents

Printer head assembly

Info

Publication number
GB1338009A
GB1338009A GB1381571A GB1381571A GB1338009A GB 1338009 A GB1338009 A GB 1338009A GB 1381571 A GB1381571 A GB 1381571A GB 1381571 A GB1381571 A GB 1381571A GB 1338009 A GB1338009 A GB 1338009A
Authority
GB
United Kingdom
Prior art keywords
strip
armature
housing
driving means
print
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
GB1381571A
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.)
Centronics Data Computer Corp
Original Assignee
Centronics Data Computer Corp
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 Centronics Data Computer Corp filed Critical Centronics Data Computer Corp
Publication of GB1338009A publication Critical patent/GB1338009A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/10—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by matrix printers
    • 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
    • B41J2/235—Print head assemblies
    • B41J2/265—Guides for print wires
    • 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
    • B41J2/27—Actuators for print wires
    • B41J2/285—Actuators for print wires of plunger type

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Impact Printers (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)

Abstract

1338009 Selective printing CENTRONICS DATA COMPUTER CORP 7 May 1971 [7 May 1970 15 May 1970] 13815/71 Heading B6F A dot-matrix print head comprises a housing 10 having a number of print wire driving means 18 mounted on the rear faces of the rear wall which is in the form of a truncated pyramid, print wires 19 being connected to respective driving means and passing in line through a jewel bearing 44, 45, mounted in the front wall of the housing. The wires pass through guides 42 fixed in apertured plates 25, 32, and there is a plastics snap-on cover 150. During assembly the jewel bearing is located with the help of a strip spring 46 and subsequently fixed by an epoxy. Wire driving means: each comprises, Fig. 2 (not shown) a solenoid and an armature (57) to which a print wire 19 is attached. The armature is driven forward against the action of a flexible disc 61 secured to the armature. which disc serves as a return spring. The movement of the printing head assembly is detected by a position detection device (70), Fig. 16 (not shown), fixed to the housing, which includes a code strip 71 having a pattern of transparent and opaque strips. Light from a source (72) is focused on the stationary strip by a lens system (73) and passing through transparent slits (71a) is picked up by a photo-cell device to generate pulses representative of the light and dark areas of the strip pattern. The ouput pulses are applied to a circuit to control energization of the solenoids 18.
GB1381571A 1970-05-07 1971-05-07 Printer head assembly Expired GB1338009A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3540570A 1970-05-07 1970-05-07
US3781570A 1970-05-15 1970-05-15

Publications (1)

Publication Number Publication Date
GB1338009A true GB1338009A (en) 1973-11-21

Family

ID=26712082

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1381571A Expired GB1338009A (en) 1970-05-07 1971-05-07 Printer head assembly

Country Status (6)

Country Link
CA (1) CA976806A (en)
CH (1) CH539894A (en)
DE (1) DE2122674B2 (en)
FR (1) FR2101427A5 (en)
GB (1) GB1338009A (en)
NL (2) NL7106329A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110253710A (en) * 2019-07-18 2019-09-20 河北工业大学 A special fixture for extrusion paste 3D printer

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834505A (en) * 1972-12-11 1974-09-10 Ibm Ink jet printing apparatus with line sweep and incremental printing facilities
US3838250A (en) * 1973-01-05 1974-09-24 Singer Co Control for a matrix printing assembly
CH615623A5 (en) * 1975-09-09 1980-02-15 Sci Systems Inc Device for electrically printing characters
DE2728093A1 (en) * 1976-06-24 1978-01-12 Ricoh Kk High speed dot matrix printing head - has printing wires connected to equal number of solenoids mounted on rear end of head support
US4404572A (en) * 1979-01-31 1983-09-13 Canon Kabushiki Kaisha Recording apparatus
JPS5640559A (en) * 1979-09-10 1981-04-16 Canon Inc Recording device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3236351A (en) * 1961-12-05 1966-02-22 Ibm High speed matrix printer
DE1806714A1 (en) * 1968-11-02 1970-06-25 Philips Electrologica Printing unit for on-the-fly printing of characters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110253710A (en) * 2019-07-18 2019-09-20 河北工业大学 A special fixture for extrusion paste 3D printer
CN110253710B (en) * 2019-07-18 2024-02-02 河北工业大学 Special fixture for extrusion type slurry 3D printer

Also Published As

Publication number Publication date
CA976806A (en) 1975-10-28
DE2122674A1 (en) 1971-11-25
NL7801545A (en) 1978-06-30
FR2101427A5 (en) 1972-03-31
NL7106329A (en) 1971-11-09
CH539894A (en) 1973-07-31
DE2122674B2 (en) 1981-03-26

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee