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JPS54114250A - Thermographic head - Google Patents

Thermographic head

Info

Publication number
JPS54114250A
JPS54114250A JP2172678A JP2172678A JPS54114250A JP S54114250 A JPS54114250 A JP S54114250A JP 2172678 A JP2172678 A JP 2172678A JP 2172678 A JP2172678 A JP 2172678A JP S54114250 A JPS54114250 A JP S54114250A
Authority
JP
Japan
Prior art keywords
heat
substrate
heating resistor
resistor part
directions
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.)
Granted
Application number
JP2172678A
Other languages
Japanese (ja)
Other versions
JPS5651110B2 (en
Inventor
Nobuhiro 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.)
Iwatsu Electric Co Ltd
Original Assignee
Iwatsu Electric 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 Iwatsu Electric Co Ltd filed Critical Iwatsu Electric Co Ltd
Priority to JP2172678A priority Critical patent/JPS54114250A/en
Publication of JPS54114250A publication Critical patent/JPS54114250A/en
Publication of JPS5651110B2 publication Critical patent/JPS5651110B2/ja
Granted 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

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To prevent heat responsiveness from becoming poor even if heat efficiency and heat separation are improved by providing heating resistor parts on the specific substrate having thermal anisotropy. CONSTITUTION:A multiplicity of heating resistor parts 3 are disposed in linear from on a substrate 1 of the crystal which the thicknesss direction is cut paralled to the main axis C-axis of hexagonal system so that the heat conductivity in the thickness direction becomes larger than the heat conductivity in the face direction. For example, when the heating resistor part 3a is selected and current flows in that thin film resistance, the resistor part 3 evolves heat, causing thermographic paper 10 to color. At this same instant, the heat of the resistor part 3a diffuses in the thickness direction 15 of the substrate 1 and in the face directions 16, 17 of the substrate 1. Since the heat conductivities of the directions 16, 17 are about half the heat conductivity of the direction 15, the greater portion of the heat evolved diffused in the direction 15 and radiates from a metal radiating plate 9.
JP2172678A 1978-02-27 1978-02-27 Thermographic head Granted JPS54114250A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2172678A JPS54114250A (en) 1978-02-27 1978-02-27 Thermographic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2172678A JPS54114250A (en) 1978-02-27 1978-02-27 Thermographic head

Publications (2)

Publication Number Publication Date
JPS54114250A true JPS54114250A (en) 1979-09-06
JPS5651110B2 JPS5651110B2 (en) 1981-12-03

Family

ID=12063072

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2172678A Granted JPS54114250A (en) 1978-02-27 1978-02-27 Thermographic head

Country Status (1)

Country Link
JP (1) JPS54114250A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58101758U (en) * 1981-12-28 1983-07-11 株式会社リコー thermal head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58101758U (en) * 1981-12-28 1983-07-11 株式会社リコー thermal head

Also Published As

Publication number Publication date
JPS5651110B2 (en) 1981-12-03

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