JPS54121141A - Thermal head - Google Patents

Thermal head

Info

Publication number
JPS54121141A
JPS54121141A JP2816378A JP2816378A JPS54121141A JP S54121141 A JPS54121141 A JP S54121141A JP 2816378 A JP2816378 A JP 2816378A JP 2816378 A JP2816378 A JP 2816378A JP S54121141 A JPS54121141 A JP S54121141A
Authority
JP
Japan
Prior art keywords
electrodes
protecting layer
film thickness
thermal head
heating resistor
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
JP2816378A
Other languages
Japanese (ja)
Inventor
Noboru Yoshigami
Tatsuyuki Tomioka
Kiyoharu Yamashita
Mitsuo Imamura
Takamichi Hattori
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP2816378A priority Critical patent/JPS54121141A/en
Publication of JPS54121141A publication Critical patent/JPS54121141A/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
    • B41J2/315—Typewriters 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
    • B41J2/32—Typewriters 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
    • B41J2/345—Typewriters 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 characterised by the arrangement of resistors or conductors

Abstract

PURPOSE:To prevent the accumulation of paper dust and cracking of protecting layer and obtain a thermal head of high reliability by providing electrode layers of a specific shape and multilayer structure and protecting layer on the heating resistor provided on a substrate. CONSTITUTION:A thin film of a heating resistor 2 is formed on the glazed surface of a heat-resistant and insulation type substrate 1 such as of ceramics Cr electrodes 3 of about 0.2mu in film thickness and Au electrodes 4 of about 0.5mu in film thickness are laminated threron to form wiring patterns, following to which Au electrodes 5 of about 2 to 5mu in film thickness are formed in the portions other than those where thermographic paper contacts and finally a protecting layer 6 is so formed that its both side end parts cover at least a part of the Au electrodes 5, whereby the thermal head is obtained. Namely, the Au electrodes 5 are formed at least excluding the portions making contact to the thermographic paper and so that the end part s of the heating part side of the electrodes 5 enter the underside of the protecting layer 6.
JP2816378A 1978-03-10 1978-03-10 Thermal head Pending JPS54121141A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2816378A JPS54121141A (en) 1978-03-10 1978-03-10 Thermal head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2816378A JPS54121141A (en) 1978-03-10 1978-03-10 Thermal head

Publications (1)

Publication Number Publication Date
JPS54121141A true JPS54121141A (en) 1979-09-20

Family

ID=12241078

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2816378A Pending JPS54121141A (en) 1978-03-10 1978-03-10 Thermal head

Country Status (1)

Country Link
JP (1) JPS54121141A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5824461A (en) * 1981-08-04 1983-02-14 Rohm Co Ltd Lead wire forming method of thermal printer head
JPS5931171A (en) * 1982-08-14 1984-02-20 Tamura Electric Works Ltd Preparation of thermal head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5824461A (en) * 1981-08-04 1983-02-14 Rohm Co Ltd Lead wire forming method of thermal printer head
JPS5931171A (en) * 1982-08-14 1984-02-20 Tamura Electric Works Ltd Preparation of thermal head

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