JPS5586771A - Structure of electro-magnet for wire type dot printer printing head - Google Patents

Structure of electro-magnet for wire type dot printer printing head

Info

Publication number
JPS5586771A
JPS5586771A JP16362578A JP16362578A JPS5586771A JP S5586771 A JPS5586771 A JP S5586771A JP 16362578 A JP16362578 A JP 16362578A JP 16362578 A JP16362578 A JP 16362578A JP S5586771 A JPS5586771 A JP S5586771A
Authority
JP
Japan
Prior art keywords
winding
plunger
printing head
electro
magnet
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.)
Pending
Application number
JP16362578A
Other languages
Japanese (ja)
Inventor
Yoshifumi Gomi
Akio Mitsuishi
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.)
Seiko Epson Corp
Suwa Seikosha KK
Epson Corp
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
Epson 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 Seiko Epson Corp, Suwa Seikosha KK, Epson Corp filed Critical Seiko Epson Corp
Priority to JP16362578A priority Critical patent/JPS5586771A/en
Publication of JPS5586771A publication Critical patent/JPS5586771A/en
Pending 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
    • 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
    • B41J2/275—Actuators for print wires of clapper type

Landscapes

  • Impact Printers (AREA)

Abstract

PURPOSE:To realize an extremely small dot head of which windings and printing head are made as small as possible by displacing a central line of a plunger to be retracted to an end surface of winding core toward a fulcrum point of crapper from a center line of the winding core. CONSTITUTION:Both a center line a of the winding core 1a and a center line b of a plunger 2 retracted against an end surface of the core 1a when a driving coil 4 is energized in response to a printing instruction are set to be displaced by a distance d to a fulcrum point A of crapper positioned opposite to the winding 1a more than an extended plane of an end surface of the winding 1a into which a plunger 2 is inserted, and a clearance between the plunger 2 and the winding 1a is made such that a size e at the fulcrum point A is smaller than a size f.
JP16362578A 1978-12-23 1978-12-23 Structure of electro-magnet for wire type dot printer printing head Pending JPS5586771A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16362578A JPS5586771A (en) 1978-12-23 1978-12-23 Structure of electro-magnet for wire type dot printer printing head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16362578A JPS5586771A (en) 1978-12-23 1978-12-23 Structure of electro-magnet for wire type dot printer printing head

Publications (1)

Publication Number Publication Date
JPS5586771A true JPS5586771A (en) 1980-06-30

Family

ID=15777477

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16362578A Pending JPS5586771A (en) 1978-12-23 1978-12-23 Structure of electro-magnet for wire type dot printer printing head

Country Status (1)

Country Link
JP (1) JPS5586771A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60180851A (en) * 1984-02-29 1985-09-14 Canon Inc Wire dot head
US4569605A (en) * 1984-02-02 1986-02-11 International Business Machines Corporation Wire driving armature for dot printer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569605A (en) * 1984-02-02 1986-02-11 International Business Machines Corporation Wire driving armature for dot printer
JPS60180851A (en) * 1984-02-29 1985-09-14 Canon Inc Wire dot head

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