JPS57212077A - Printer - Google Patents

Printer

Info

Publication number
JPS57212077A
JPS57212077A JP9887781A JP9887781A JPS57212077A JP S57212077 A JPS57212077 A JP S57212077A JP 9887781 A JP9887781 A JP 9887781A JP 9887781 A JP9887781 A JP 9887781A JP S57212077 A JPS57212077 A JP S57212077A
Authority
JP
Japan
Prior art keywords
armature
collision
stopper
noise
printer
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.)
Granted
Application number
JP9887781A
Other languages
Japanese (ja)
Other versions
JPS649947B2 (en
Inventor
Toru Okuda
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP9887781A priority Critical patent/JPS57212077A/en
Publication of JPS57212077A publication Critical patent/JPS57212077A/en
Publication of JPS649947B2 publication Critical patent/JPS649947B2/ja
Granted 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

  • Accessory Devices And Overall Control Thereof (AREA)
  • Impact Printers (AREA)

Abstract

PURPOSE:To improve the printing noise of a mechanical printer by forming at least a part of parts related to the impacting operation of the mechanical printer from an alloy capable of performing a thermoelastic martensite transformation. CONSTITUTION:A dot wire 1 is connected with an armature 2 at a fitting position 3, and the armature 2 is fixed to the end of a yoke 5 by a keep plate 4. The armature 2 is attracted by a driving electromagnet 7 by its excitation, retreated by the non-excitation of the electromagnet 7, and contacted with a stopper 9 for controlling. In printing, noise is produced in the collision of the dot wire 1 against the printing face and the collision of the armature 2 against the electromagnet 7 and the stopper 9. In the printer, since all or part of the dot wire 1, the armature 2, the fitting position 3, the keep plate 4, the yoke 5, the stopper 9 and a base 8 are made of an alloy with a thermoelastic martensite transformation, the noise in the collision can be reduced.
JP9887781A 1981-06-23 1981-06-23 Printer Granted JPS57212077A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9887781A JPS57212077A (en) 1981-06-23 1981-06-23 Printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9887781A JPS57212077A (en) 1981-06-23 1981-06-23 Printer

Publications (2)

Publication Number Publication Date
JPS57212077A true JPS57212077A (en) 1982-12-27
JPS649947B2 JPS649947B2 (en) 1989-02-20

Family

ID=14231390

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9887781A Granted JPS57212077A (en) 1981-06-23 1981-06-23 Printer

Country Status (1)

Country Link
JP (1) JPS57212077A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5013169A (en) * 1988-08-23 1991-05-07 Citizen Watch Company, Ltd. Print head having reduced noise and vibration characteristics

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5013169A (en) * 1988-08-23 1991-05-07 Citizen Watch Company, Ltd. Print head having reduced noise and vibration characteristics

Also Published As

Publication number Publication date
JPS649947B2 (en) 1989-02-20

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