JPS5699679A - Radiator for thermal head - Google Patents

Radiator for thermal head

Info

Publication number
JPS5699679A
JPS5699679A JP91080A JP91080A JPS5699679A JP S5699679 A JPS5699679 A JP S5699679A JP 91080 A JP91080 A JP 91080A JP 91080 A JP91080 A JP 91080A JP S5699679 A JPS5699679 A JP S5699679A
Authority
JP
Japan
Prior art keywords
radiator
substrate
hollow portion
thermal head
heat exchanging
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
JP91080A
Other languages
Japanese (ja)
Inventor
Yoshiro Yabuki
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 JP91080A priority Critical patent/JPS5699679A/en
Publication of JPS5699679A publication Critical patent/JPS5699679A/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
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/377—Cooling or ventilating arrangements

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To improve a thermal head in radiating efficiency without increasing the area of the head substrate by providing a radiator on the side portion of a thermal head, forming a hollow portion extending through the substrate and the radiator and sealing a heat exchanging fluid in said hollow portion. CONSTITUTION:On the upper surface 4 of a substrate 3 of alumina or the like, a plurality of heating elements 5 are provided in a row. On the side surface 6 of said substrate 3, a radiator 7 made of a material of excellent thermal conductivity, such as aluminum, and having a thickness approximately equal to that of the substrate 3 is provided. A plurality of fins 8 and 8 are formed on the upper and lower surfaces of said radiator 7. A closed hollow portion 9 is formed in the latitudinal center of both the substrate 3 and the radiator 7, extending therethrough. A heat exchanging fluid such as water is sealed in the hollow portion 9. It is desirable to corrugate the circumferential wall of the hollow portion 9. Providing heating means in the hollow portion 9 can prevent the lowering of coloring density at starting in a cold district.
JP91080A 1980-01-10 1980-01-10 Radiator for thermal head Pending JPS5699679A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP91080A JPS5699679A (en) 1980-01-10 1980-01-10 Radiator for thermal head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP91080A JPS5699679A (en) 1980-01-10 1980-01-10 Radiator for thermal head

Publications (1)

Publication Number Publication Date
JPS5699679A true JPS5699679A (en) 1981-08-11

Family

ID=11486824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP91080A Pending JPS5699679A (en) 1980-01-10 1980-01-10 Radiator for thermal head

Country Status (1)

Country Link
JP (1) JPS5699679A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5037216A (en) * 1988-09-23 1991-08-06 Datacard Corporation System and method for producing data bearing cards

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5037216A (en) * 1988-09-23 1991-08-06 Datacard Corporation System and method for producing data bearing cards
US5401111A (en) * 1988-09-23 1995-03-28 Datacard Corporation System and method for cleaning data bearing cards
US5588763A (en) * 1988-09-23 1996-12-31 Datacard Corporation System and method for cleaning and producing data bearing cards

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