JPS54141650A - Printer - Google Patents

Printer

Info

Publication number
JPS54141650A
JPS54141650A JP5044178A JP5044178A JPS54141650A JP S54141650 A JPS54141650 A JP S54141650A JP 5044178 A JP5044178 A JP 5044178A JP 5044178 A JP5044178 A JP 5044178A JP S54141650 A JPS54141650 A JP S54141650A
Authority
JP
Japan
Prior art keywords
thermal head
temperature
heating element
recording paper
temperature sensing
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
JP5044178A
Other languages
Japanese (ja)
Inventor
Chuzo Arakawa
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP5044178A priority Critical patent/JPS54141650A/en
Publication of JPS54141650A publication Critical patent/JPS54141650A/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
    • B41J2/35—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 providing current or voltage to the thermal head
    • B41J2/355—Control circuits for heating-element selection
    • B41J2/36—Print density control
    • B41J2/365—Print density control by compensation for variation in temperature

Landscapes

  • Electronic Switches (AREA)

Abstract

PURPOSE:To stabilize printing densities irrespective of temperature change of use enivornments by providing a heating means to a thermal head or thermal head mount and associating a temperature sensing means to this heating means. CONSTITUTION:Recording paper 8 is pressure contacted to a roller platen 7 and the recording paper 8 is pressed onto the heating element 10 on a thermal head 9, whereby printing is accomplished. On the other hand, a bar form heating element 12 is buried together with a temperature sensing element 13 in the thermal head mount 11 on which the thermal head 9 is placed. The temperature sensing element 13 detects the temperature of the heating element 12 and automatically controls the current supplied to the heating element 12. Since this causes the temperature of the thermal head mount 11 to be set at the specified fixed teperature, recording may be performed on the recording paper 8 always at an even printing density despite the occurrence of any change in the temperature around the otside.
JP5044178A 1978-04-27 1978-04-27 Printer Pending JPS54141650A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5044178A JPS54141650A (en) 1978-04-27 1978-04-27 Printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5044178A JPS54141650A (en) 1978-04-27 1978-04-27 Printer

Publications (1)

Publication Number Publication Date
JPS54141650A true JPS54141650A (en) 1979-11-05

Family

ID=12858939

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5044178A Pending JPS54141650A (en) 1978-04-27 1978-04-27 Printer

Country Status (1)

Country Link
JP (1) JPS54141650A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57199452U (en) * 1981-06-11 1982-12-18
US4449033A (en) * 1982-12-27 1984-05-15 International Business Machines Corporation Thermal print head temperature sensing and control
JPS59229369A (en) * 1983-06-07 1984-12-22 Rohm Co Ltd Thermal printing head
US4542281A (en) * 1984-03-02 1985-09-17 Combustion Engineering, Inc. Thermal printer contrast control
US4659416A (en) * 1982-01-07 1987-04-21 Ecupan Ab Thermal bar code printer for label applicator
JPH0498152U (en) * 1991-01-21 1992-08-25
US5529408A (en) * 1986-11-26 1996-06-25 Canon Kabushiki Kaisha Thermal transfer recording method including preheating thermal transfer recording medium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4922042A (en) * 1972-06-19 1974-02-27
JPS50106651A (en) * 1974-01-29 1975-08-22
JPS5327787A (en) * 1976-08-27 1978-03-15 Hitachi Ltd Temperature controlling device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4922042A (en) * 1972-06-19 1974-02-27
JPS50106651A (en) * 1974-01-29 1975-08-22
JPS5327787A (en) * 1976-08-27 1978-03-15 Hitachi Ltd Temperature controlling device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57199452U (en) * 1981-06-11 1982-12-18
US4659416A (en) * 1982-01-07 1987-04-21 Ecupan Ab Thermal bar code printer for label applicator
US4449033A (en) * 1982-12-27 1984-05-15 International Business Machines Corporation Thermal print head temperature sensing and control
EP0112474A2 (en) * 1982-12-27 1984-07-04 International Business Machines Corporation Thermal print head temperature sensing
JPS59229369A (en) * 1983-06-07 1984-12-22 Rohm Co Ltd Thermal printing head
US4542281A (en) * 1984-03-02 1985-09-17 Combustion Engineering, Inc. Thermal printer contrast control
US5529408A (en) * 1986-11-26 1996-06-25 Canon Kabushiki Kaisha Thermal transfer recording method including preheating thermal transfer recording medium
JPH0498152U (en) * 1991-01-21 1992-08-25

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