JPS56159180A - Compensator for temperature of thermal head - Google Patents

Compensator for temperature of thermal head

Info

Publication number
JPS56159180A
JPS56159180A JP6272880A JP6272880A JPS56159180A JP S56159180 A JPS56159180 A JP S56159180A JP 6272880 A JP6272880 A JP 6272880A JP 6272880 A JP6272880 A JP 6272880A JP S56159180 A JPS56159180 A JP S56159180A
Authority
JP
Japan
Prior art keywords
temperature
voltage
thermal head
resistance
control circuit
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
JP6272880A
Other languages
English (en)
Inventor
Masashi Shoji
Hiroaki Ogushi
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
Ricoh Denshi Kogyo KK
Original Assignee
Ricoh Co Ltd
Ricoh Denshi Kogyo KK
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, Ricoh Denshi Kogyo KK filed Critical Ricoh Co Ltd
Priority to JP6272880A priority Critical patent/JPS56159180A/ja
Publication of JPS56159180A publication Critical patent/JPS56159180A/ja
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
    • 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

Landscapes

  • Electronic Switches (AREA)
JP6272880A 1980-05-14 1980-05-14 Compensator for temperature of thermal head Pending JPS56159180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6272880A JPS56159180A (en) 1980-05-14 1980-05-14 Compensator for temperature of thermal head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6272880A JPS56159180A (en) 1980-05-14 1980-05-14 Compensator for temperature of thermal head

Publications (1)

Publication Number Publication Date
JPS56159180A true JPS56159180A (en) 1981-12-08

Family

ID=13208708

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6272880A Pending JPS56159180A (en) 1980-05-14 1980-05-14 Compensator for temperature of thermal head

Country Status (1)

Country Link
JP (1) JPS56159180A (ja)

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