JPS56159177A - Thermal head - Google Patents

Thermal head

Info

Publication number
JPS56159177A
JPS56159177A JP6350780A JP6350780A JPS56159177A JP S56159177 A JPS56159177 A JP S56159177A JP 6350780 A JP6350780 A JP 6350780A JP 6350780 A JP6350780 A JP 6350780A JP S56159177 A JPS56159177 A JP S56159177A
Authority
JP
Japan
Prior art keywords
electrode
thermal head
silver
metals
copper
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
JP6350780A
Other languages
Japanese (ja)
Inventor
Takayuki Yamaguchi
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP6350780A priority Critical patent/JPS56159177A/en
Publication of JPS56159177A publication Critical patent/JPS56159177A/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
    • B41J2/335—Structure of thermal heads

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To provide the subject device which reduces a difference by steps of a protection layer and to improve a contact property of a heating part, a platen roller, and a heat-sensitive sheet, by a method wherein a thin type electrode, made of copper, silver, or allly whose main components are these metals, is employed. CONSTITUTION:A thermal head consists of a thin type electrode 3', made of copper, silver, or alloy of them, or alloy whose main components are these metals and which contains either one or more of gold, aluminum, nickel, chrome, tin, and zinc, a heating resistance 2', and a protection layer 4'. In the thermal head, the thickness of the electrode 3' can be about 2/3 that of conventional electrodes, and as a result, a difference by steps is reduced, whereby a platen roller 5' and a heat-sensitive sheet 6' make ideal contact with a heating part. EFFECT:As compared with a gold electrode, said electrode can be sharply reduced in a manufacturing cost.
JP6350780A 1980-05-14 1980-05-14 Thermal head Pending JPS56159177A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6350780A JPS56159177A (en) 1980-05-14 1980-05-14 Thermal head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6350780A JPS56159177A (en) 1980-05-14 1980-05-14 Thermal head

Publications (1)

Publication Number Publication Date
JPS56159177A true JPS56159177A (en) 1981-12-08

Family

ID=13231202

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6350780A Pending JPS56159177A (en) 1980-05-14 1980-05-14 Thermal head

Country Status (1)

Country Link
JP (1) JPS56159177A (en)

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