JPS5563283A - Wire dot printer - Google Patents

Wire dot printer

Info

Publication number
JPS5563283A
JPS5563283A JP13645678A JP13645678A JPS5563283A JP S5563283 A JPS5563283 A JP S5563283A JP 13645678 A JP13645678 A JP 13645678A JP 13645678 A JP13645678 A JP 13645678A JP S5563283 A JPS5563283 A JP S5563283A
Authority
JP
Japan
Prior art keywords
flux
magnetic
yoke
permanent magnet
generation
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
JP13645678A
Other languages
Japanese (ja)
Inventor
Shigetomo Sawada
Kiyoshi Ito
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP13645678A priority Critical patent/JPS5563283A/en
Publication of JPS5563283A publication Critical patent/JPS5563283A/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

Abstract

PURPOSE:To check the generation of leaked magnetic flux by enabling simple and proper adjustment of the amount of flux by means of a small hole for magnetic resistance formed in the sub-magnetic path composing a yoke. CONSTITUTION:When excited, an electromagnet 6 receives an excitation opposite to a permanent magnet 5 and the magnetic flux generated from the permanent magnet 5 is diverged into a suction part 2 and a side current part 7 causing decrease in the flux of the suction part. Consequently, an armature 4 is released by force of a spring 1 and a printing wire 9 impacts on the surface of the recording paper so as to effect printing. In an apparatus of such a type, a small hole 10 for magnetic resistance is provided on the side current part of a yoke 3 for example at the angle of flux flowing to the section. With such an arrangement, the amount of flux flowing through the main and submagnetic paths can be adjusted simply and properly. This checks the generation of leaked magnetic flux eliminating adverse effect on the adjacent head thereby stabilizing actions.
JP13645678A 1978-11-06 1978-11-06 Wire dot printer Pending JPS5563283A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13645678A JPS5563283A (en) 1978-11-06 1978-11-06 Wire dot printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13645678A JPS5563283A (en) 1978-11-06 1978-11-06 Wire dot printer

Publications (1)

Publication Number Publication Date
JPS5563283A true JPS5563283A (en) 1980-05-13

Family

ID=15175528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13645678A Pending JPS5563283A (en) 1978-11-06 1978-11-06 Wire dot printer

Country Status (1)

Country Link
JP (1) JPS5563283A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56162669A (en) * 1980-05-19 1981-12-14 Brother Ind Ltd Printing head of dot printer
JPS57199669A (en) * 1981-06-02 1982-12-07 Oki Electric Ind Co Ltd Dot printing head
JPS587659U (en) * 1981-07-10 1983-01-18 富士通株式会社 print head
JPS5829680A (en) * 1981-08-17 1983-02-21 Fujitsu Ltd Printing head
US4921364A (en) * 1985-09-10 1990-05-01 Citizen Watch Co., Ltd. Dot matrix print head having easily removable magnets

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56162669A (en) * 1980-05-19 1981-12-14 Brother Ind Ltd Printing head of dot printer
JPS6216830B2 (en) * 1980-05-19 1987-04-14 Brother Ind Ltd
JPS57199669A (en) * 1981-06-02 1982-12-07 Oki Electric Ind Co Ltd Dot printing head
JPS625073B2 (en) * 1981-06-02 1987-02-03 Oki Denki Kogyo Kk
JPS587659U (en) * 1981-07-10 1983-01-18 富士通株式会社 print head
JPS6212616Y2 (en) * 1981-07-10 1987-04-01
JPS5829680A (en) * 1981-08-17 1983-02-21 Fujitsu Ltd Printing head
JPH0128705B2 (en) * 1981-08-17 1989-06-05 Fujitsu Ltd
US4921364A (en) * 1985-09-10 1990-05-01 Citizen Watch Co., Ltd. Dot matrix print head having easily removable magnets

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