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JPS5747672A - Dot print head - Google Patents

Dot print head

Info

Publication number
JPS5747672A
JPS5747672A JP12121480A JP12121480A JPS5747672A JP S5747672 A JPS5747672 A JP S5747672A JP 12121480 A JP12121480 A JP 12121480A JP 12121480 A JP12121480 A JP 12121480A JP S5747672 A JPS5747672 A JP S5747672A
Authority
JP
Japan
Prior art keywords
armature
sheet
print head
core
permanent 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
JP12121480A
Other languages
Japanese (ja)
Inventor
Koichi Ando
Kazumasa Fukushima
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP12121480A priority Critical patent/JPS5747672A/en
Publication of JPS5747672A publication Critical patent/JPS5747672A/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
    • B41J2/28—Actuators for print wires of spring charge type, i.e. with mechanical power under electro-magnetic control

Landscapes

  • Impact Printers (AREA)

Abstract

PURPOSE:To prevent the lowering of the life of a dot print head due to the wearing of a sheet by using a long sheet automatically moving with the rotation of an armature between the armature and core of an impact type dot print head. CONSTITUTION:A core 5 provided with a coil 7 and a permanent magnet 6 is fitted with an armature 2 having a dot wire 1 on its tip and a plate spring 3 on its rear end, a long sheet 9 is put between the armature 2 and the coil 5, and its proper position is pressed on the permanent magnet 6 by means of sheet pusher 10. In such a device, the armature 2 attracted to the surface of the core 5 by the magnetic flux of the permanent magnet 6 turns, when the magnetic flux is erased by electrification, around the point A by the reaction force of the plate spring 3, as shown by broken line, but the lower end 11 of the armature 2 is moved in the direction of arrow a (left side) and the sheet 9 slightly moves toward the direction of arrow a and is renewed.
JP12121480A 1980-09-03 1980-09-03 Dot print head Pending JPS5747672A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12121480A JPS5747672A (en) 1980-09-03 1980-09-03 Dot print head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12121480A JPS5747672A (en) 1980-09-03 1980-09-03 Dot print head

Publications (1)

Publication Number Publication Date
JPS5747672A true JPS5747672A (en) 1982-03-18

Family

ID=14805694

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12121480A Pending JPS5747672A (en) 1980-09-03 1980-09-03 Dot print head

Country Status (1)

Country Link
JP (1) JPS5747672A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59202863A (en) * 1983-05-04 1984-11-16 Hitachi Ltd Printing head
US4582437A (en) * 1983-10-07 1986-04-15 Centronics Data Computer Corp. Print pin actuator and method of making same
US4812061A (en) * 1986-08-28 1989-03-14 Tokyo Electric Co., Ltd. Technique for improving the wear resistance of a wire matrix printing head
EP0442294A2 (en) * 1990-01-23 1991-08-21 Oki Electric Industry Co., Ltd. Wire dot print head

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59202863A (en) * 1983-05-04 1984-11-16 Hitachi Ltd Printing head
JPH043309B2 (en) * 1983-05-04 1992-01-22
US4582437A (en) * 1983-10-07 1986-04-15 Centronics Data Computer Corp. Print pin actuator and method of making same
US4812061A (en) * 1986-08-28 1989-03-14 Tokyo Electric Co., Ltd. Technique for improving the wear resistance of a wire matrix printing head
EP0442294A2 (en) * 1990-01-23 1991-08-21 Oki Electric Industry Co., Ltd. Wire dot print head

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