JPS55144180A - Thermal head - Google Patents

Thermal head

Info

Publication number
JPS55144180A
JPS55144180A JP5317579A JP5317579A JPS55144180A JP S55144180 A JPS55144180 A JP S55144180A JP 5317579 A JP5317579 A JP 5317579A JP 5317579 A JP5317579 A JP 5317579A JP S55144180 A JPS55144180 A JP S55144180A
Authority
JP
Japan
Prior art keywords
metal
thermal
thermal head
plastic
glass fiber
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
JP5317579A
Other languages
Japanese (ja)
Inventor
Koji Mori
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 JP5317579A priority Critical patent/JPS55144180A/en
Publication of JPS55144180A publication Critical patent/JPS55144180A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electronic Switches (AREA)
  • Details Of Resistors (AREA)
  • Non-Adjustable Resistors (AREA)

Abstract

PURPOSE: To provide a thermal head for enabling a production of such an image quality as having a high concentration without uneven concentration by a method wherein a thermal resistant plastic having either a conductive glass fiber or a metal etc. is applied in one part or all of the electrode of the thermal head.
CONSTITUTION: Plastic forming operation is performed under an injection by using a conductive plastic 8 on a base plate 3 made of a ceramic etc. resulting in producing a projected electrode having a hole at its central portion. This conductive plastic includes a glass fiber in which its surface is covered with a metal in thermal- resistant resin, has a resistivity approximately being equal to that of a metal and also has a thermal conductivity approximately being equal to that of insulator. Metal electrodes 9 are evaporated at both sides of the projected electrode, etched and then a heating paste 1 is coated in the central hole. Lastly, the upper surface of the heater 1 may be made to be flat and a protection film may be formed.
COPYRIGHT: (C)1980,JPO&Japio
JP5317579A 1979-04-27 1979-04-27 Thermal head Pending JPS55144180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5317579A JPS55144180A (en) 1979-04-27 1979-04-27 Thermal head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5317579A JPS55144180A (en) 1979-04-27 1979-04-27 Thermal head

Publications (1)

Publication Number Publication Date
JPS55144180A true JPS55144180A (en) 1980-11-10

Family

ID=12935514

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5317579A Pending JPS55144180A (en) 1979-04-27 1979-04-27 Thermal head

Country Status (1)

Country Link
JP (1) JPS55144180A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01276601A (en) * 1988-04-27 1989-11-07 Ibiden Co Ltd Resin-based resistance paste

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01276601A (en) * 1988-04-27 1989-11-07 Ibiden Co Ltd Resin-based resistance paste

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