JPS564475A - Thermal head - Google Patents

Thermal head

Info

Publication number
JPS564475A
JPS564475A JP8050979A JP8050979A JPS564475A JP S564475 A JPS564475 A JP S564475A JP 8050979 A JP8050979 A JP 8050979A JP 8050979 A JP8050979 A JP 8050979A JP S564475 A JPS564475 A JP S564475A
Authority
JP
Japan
Prior art keywords
heat
heating
insulating layer
layer
dot part
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
JP8050979A
Other languages
Japanese (ja)
Inventor
Nobuyoshi Taguchi
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 JP8050979A priority Critical patent/JPS564475A/en
Publication of JPS564475A publication Critical patent/JPS564475A/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
    • B41J2/375—Protection arrangements against overheating

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To obtain a thermal head wherein a heating dot part is prevented from being heated high sharply, the heat radiation is expedited and high-speed driving is enabled, by reducing the thickness of a heat-insulating layer just below the heating dot part. CONSTITUTION:An electrode layer 4 is formed in such a way that a heat-insulating layer 2 (ex: glass) is formed on a heat-resistant insulating substrate 1 (ex: alumina substrate), whereon a heating-registant element layer 3 generating Joule heat is formed, on which a heating dot part 3' is further formed, and an abrasion resisting layer 5 is also provided. In this case, the partial thickness of the heat-insulating layer 2 just below the heating dot part 3' is removed partially or completely by etching or other means. Since the thickness of the heat-insulating layer 2 is reduced or eliminated, heat radiation is promoted and the peak (T3) of surface temperature is rather lowered even when heating to high temperature is made for high-speed driving. As a result, the life of the heating-resistant element layer, etc. is prolonged and the high-speed driving (short pulse driving 2m sec or less) turns so far possible.
JP8050979A 1979-06-26 1979-06-26 Thermal head Pending JPS564475A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8050979A JPS564475A (en) 1979-06-26 1979-06-26 Thermal head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8050979A JPS564475A (en) 1979-06-26 1979-06-26 Thermal head

Publications (1)

Publication Number Publication Date
JPS564475A true JPS564475A (en) 1981-01-17

Family

ID=13720275

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8050979A Pending JPS564475A (en) 1979-06-26 1979-06-26 Thermal head

Country Status (1)

Country Link
JP (1) JPS564475A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS641553A (en) * 1987-03-27 1989-01-05 Canon Inc Base body for ink jet recording head, ink jet recording head and ink jet recording apparatus equipped with said recording head
JPS6422567A (en) * 1987-07-17 1989-01-25 Copal Co Ltd Thermal head
JP2019010764A (en) * 2017-06-29 2019-01-24 京セラ株式会社 Thermal head and thermal printer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4969334A (en) * 1972-11-07 1974-07-04
JPS5183536A (en) * 1975-01-18 1976-07-22 Gen Corp
JPS5346102A (en) * 1976-10-08 1978-04-25 Tone Boring Co Wide hole excavating device
JPS55150386A (en) * 1979-05-14 1980-11-22 Ricoh Co Ltd Thermosensitive recording head

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4969334A (en) * 1972-11-07 1974-07-04
JPS5183536A (en) * 1975-01-18 1976-07-22 Gen Corp
JPS5346102A (en) * 1976-10-08 1978-04-25 Tone Boring Co Wide hole excavating device
JPS55150386A (en) * 1979-05-14 1980-11-22 Ricoh Co Ltd Thermosensitive recording head

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS641553A (en) * 1987-03-27 1989-01-05 Canon Inc Base body for ink jet recording head, ink jet recording head and ink jet recording apparatus equipped with said recording head
JPS6422567A (en) * 1987-07-17 1989-01-25 Copal Co Ltd Thermal head
JP2019010764A (en) * 2017-06-29 2019-01-24 京セラ株式会社 Thermal head and thermal printer

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