JPS5640571A - Thermal print head - Google Patents

Thermal print head

Info

Publication number
JPS5640571A
JPS5640571A JP11630679A JP11630679A JPS5640571A JP S5640571 A JPS5640571 A JP S5640571A JP 11630679 A JP11630679 A JP 11630679A JP 11630679 A JP11630679 A JP 11630679A JP S5640571 A JPS5640571 A JP S5640571A
Authority
JP
Japan
Prior art keywords
layer
grazed
head
recording sheet
resistance
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
JP11630679A
Other languages
Japanese (ja)
Inventor
Hoshun Akechi
Hideo Taniguchi
Yutaka Tatsumi
Original Assignee
Rohm 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 Rohm Co Ltd filed Critical Rohm Co Ltd
Priority to JP11630679A priority Critical patent/JPS5640571A/en
Publication of JPS5640571A publication Critical patent/JPS5640571A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • B41J2/335Structure of thermal heads

Abstract

PURPOSE:To prevent the generation of uneven coloring and malprinting, by a method wherein a grazed layer is projectedly formed on a base plate having an annular periphery and a frictional resistance of a head against a recording sheet is reduced by forming a film resistance layer on a surface of the grazed layer. CONSTITUTION:A grazed layer 2 is sufficiently and projectedly formed on a surface of a base plate 1 having an annular periphery 1a, and a frictional resistance layer 3 is formed across the surface of the grazed layer 2. Conductive layers 5a-5n for electrification are formed extending to the resistance layer 3 on the grazed layer 2 surface to form a protection layer thereon. Only the surface of a projected portion D (the projection resulting from the lamination of the grazed layer 2, the resistance layer 3 on the surface of the layer 2, and the conductive layers 5a-5n) protruding from a surface of a head A makes contact with a recording sheet B, and thereby the head A is reduced in the contact area. This eliminates the possibility of the separation of the surface of the projected portion D from the recording sheet B even if the head tilts against the recording sheet B.
JP11630679A 1979-09-11 1979-09-11 Thermal print head Pending JPS5640571A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11630679A JPS5640571A (en) 1979-09-11 1979-09-11 Thermal print head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11630679A JPS5640571A (en) 1979-09-11 1979-09-11 Thermal print head

Publications (1)

Publication Number Publication Date
JPS5640571A true JPS5640571A (en) 1981-04-16

Family

ID=14683740

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11630679A Pending JPS5640571A (en) 1979-09-11 1979-09-11 Thermal print head

Country Status (1)

Country Link
JP (1) JPS5640571A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57103863A (en) * 1980-12-19 1982-06-28 Seiko Instr & Electronics Ltd Thermal head
JPS57137172A (en) * 1981-02-18 1982-08-24 Seiko Instr & Electronics Ltd Serial thermal printing head and manufacture thereof
JPS5874372A (en) * 1981-10-29 1983-05-04 Seiko Instr & Electronics Ltd Thermal head and manufacture thereof
JPS58222869A (en) * 1982-06-21 1983-12-24 Seiko Instr & Electronics Ltd Thermal printer
JPS58222868A (en) * 1982-06-21 1983-12-24 Seiko Instr & Electronics Ltd Thermal printer
JPS59229361A (en) * 1983-06-07 1984-12-22 Rohm Co Ltd Printing method of thermal printing head
JPS60214974A (en) * 1985-03-11 1985-10-28 Canon Inc Thermal head and printing method
JPS61168939U (en) * 1985-04-10 1986-10-20
JPS61168940U (en) * 1985-04-10 1986-10-20
JPH0659049U (en) * 1993-11-18 1994-08-16 アルプス電気株式会社 Serial type thermal printer
JP2008131674A (en) * 2006-11-16 2008-06-05 Kameda Denki:Kk Card holder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5177254A (en) * 1974-12-27 1976-07-05 Fujitsu Ltd

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5177254A (en) * 1974-12-27 1976-07-05 Fujitsu Ltd

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57103863A (en) * 1980-12-19 1982-06-28 Seiko Instr & Electronics Ltd Thermal head
JPH0253231B2 (en) * 1981-02-18 1990-11-16 Seiko Instr & Electronics
JPS57137172A (en) * 1981-02-18 1982-08-24 Seiko Instr & Electronics Ltd Serial thermal printing head and manufacture thereof
JPH0135743B2 (en) * 1981-10-29 1989-07-26 Seiko Denshi Kogyo Kk
JPS5874372A (en) * 1981-10-29 1983-05-04 Seiko Instr & Electronics Ltd Thermal head and manufacture thereof
JPS58222869A (en) * 1982-06-21 1983-12-24 Seiko Instr & Electronics Ltd Thermal printer
JPS58222868A (en) * 1982-06-21 1983-12-24 Seiko Instr & Electronics Ltd Thermal printer
JPS59229361A (en) * 1983-06-07 1984-12-22 Rohm Co Ltd Printing method of thermal printing head
JPS60214974A (en) * 1985-03-11 1985-10-28 Canon Inc Thermal head and printing method
JPS61168939U (en) * 1985-04-10 1986-10-20
JPS61168940U (en) * 1985-04-10 1986-10-20
JPH0445892Y2 (en) * 1985-04-10 1992-10-28
JPH0446929Y2 (en) * 1985-04-10 1992-11-05
JPH0659049U (en) * 1993-11-18 1994-08-16 アルプス電気株式会社 Serial type thermal printer
JP2008131674A (en) * 2006-11-16 2008-06-05 Kameda Denki:Kk Card holder

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