JPS54153647A - Thermal head driving system - Google Patents

Thermal head driving system

Info

Publication number
JPS54153647A
JPS54153647A JP6167478A JP6167478A JPS54153647A JP S54153647 A JPS54153647 A JP S54153647A JP 6167478 A JP6167478 A JP 6167478A JP 6167478 A JP6167478 A JP 6167478A JP S54153647 A JPS54153647 A JP S54153647A
Authority
JP
Japan
Prior art keywords
head
driving
thermal head
time
register
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
JP6167478A
Other languages
Japanese (ja)
Other versions
JPS5718507B2 (en
Inventor
Shigeaki Yamaguchi
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 JP6167478A priority Critical patent/JPS54153647A/en
Publication of JPS54153647A publication Critical patent/JPS54153647A/en
Publication of JPS5718507B2 publication Critical patent/JPS5718507B2/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
    • B41J2/35—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
    • 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

Abstract

PURPOSE:To make the temperature of a thermal head always the same as steady state and perform printing by controlling the head driving continuation time according to the count value in which the shortest driving period of the thermal head is a reference. CONSTITUTION:When there is no input corresponding to recording to a counter circuit 401, a counter circuit 402 makes addition counting at each shortest driving period and addresses a ROM 403. Then, the time for driving the thermal head in an optimum manner at the inputting of the data corresponding to the next recording is read out from the ROM 403 and is transferred to a register 404. According to the driving time being transferred to the register 404 in correspondence to the input data, the thermal head 407 is driven by a head driving circuit 406 by way of a head driving time control part 405 and at the same time the register 404 is cleared by the control part 401. Hence, the driving time of the head is controlled according to different pause times and the temperature of the head becomes always the same as steady state, thus even and well head recording is accomplished.
JP6167478A 1978-05-25 1978-05-25 Thermal head driving system Granted JPS54153647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6167478A JPS54153647A (en) 1978-05-25 1978-05-25 Thermal head driving system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6167478A JPS54153647A (en) 1978-05-25 1978-05-25 Thermal head driving system

Publications (2)

Publication Number Publication Date
JPS54153647A true JPS54153647A (en) 1979-12-04
JPS5718507B2 JPS5718507B2 (en) 1982-04-16

Family

ID=13178020

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6167478A Granted JPS54153647A (en) 1978-05-25 1978-05-25 Thermal head driving system

Country Status (1)

Country Link
JP (1) JPS54153647A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS578181A (en) * 1980-06-19 1982-01-16 Nec Corp Drive controlling circuit for thermoprinting heat resistor train
JPS5763279A (en) * 1980-10-02 1982-04-16 Ricoh Co Ltd Controlling method for heat generation in thermosensitive recording
JPS57136751U (en) * 1981-02-20 1982-08-26
JPS57208283A (en) * 1981-06-19 1982-12-21 Toshiba Corp Heat-sensitive recorder
JPS5827464A (en) * 1981-08-11 1983-02-18 Nippon Telegr & Teleph Corp <Ntt> Controller for heat sensing recording
US4540295A (en) * 1983-12-06 1985-09-10 Citizen Watch Co., Ltd. Method for controlling the temperature of the printing head of an impact printer
JPS6178669A (en) * 1984-09-27 1986-04-22 Fujitsu Ltd Thermal head controlling system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52130527A (en) * 1976-04-27 1977-11-01 Oki Electric Ind Co Ltd Driving system for thermal head

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52130527A (en) * 1976-04-27 1977-11-01 Oki Electric Ind Co Ltd Driving system for thermal head

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS578181A (en) * 1980-06-19 1982-01-16 Nec Corp Drive controlling circuit for thermoprinting heat resistor train
JPH0113265B2 (en) * 1980-06-19 1989-03-06 Nippon Electric Co
JPS5763279A (en) * 1980-10-02 1982-04-16 Ricoh Co Ltd Controlling method for heat generation in thermosensitive recording
JPS57136751U (en) * 1981-02-20 1982-08-26
JPS57208283A (en) * 1981-06-19 1982-12-21 Toshiba Corp Heat-sensitive recorder
JPS5827464A (en) * 1981-08-11 1983-02-18 Nippon Telegr & Teleph Corp <Ntt> Controller for heat sensing recording
JPS6156654B2 (en) * 1981-08-11 1986-12-03 Nippon Denshin Denwa Kk
US4540295A (en) * 1983-12-06 1985-09-10 Citizen Watch Co., Ltd. Method for controlling the temperature of the printing head of an impact printer
JPS6178669A (en) * 1984-09-27 1986-04-22 Fujitsu Ltd Thermal head controlling system

Also Published As

Publication number Publication date
JPS5718507B2 (en) 1982-04-16

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