JPS57152970A - Heat-sensitive recorder - Google Patents

Heat-sensitive recorder

Info

Publication number
JPS57152970A
JPS57152970A JP3871381A JP3871381A JPS57152970A JP S57152970 A JPS57152970 A JP S57152970A JP 3871381 A JP3871381 A JP 3871381A JP 3871381 A JP3871381 A JP 3871381A JP S57152970 A JPS57152970 A JP S57152970A
Authority
JP
Japan
Prior art keywords
pulse
voltage
produce
voltages
oscillator
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
JP3871381A
Other languages
Japanese (ja)
Other versions
JPS6351104B2 (en
Inventor
Haruhiko Moriguchi
Toshiji Inui
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox 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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP3871381A priority Critical patent/JPS57152970A/en
Publication of JPS57152970A publication Critical patent/JPS57152970A/en
Publication of JPS6351104B2 publication Critical patent/JPS6351104B2/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

Landscapes

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

Abstract

PURPOSE:To enable making of a recording picture uniform in concentration, by a method wherein a voltage applied to a heating resistor is detected, and a width of a pulse applied to the heating resistor corresponding to the voltage is caused to change. CONSTITUTION:Pulse voltages 3 and 4, generated from a pulse generator 2, are applied to a voltage control oscillator 7 where the voltages are sampled and held at a rise point of time of their respective pulse voltages and an oscillating frequency is caused to change based on a voltage value. A frequency divider 8 divides the oscillating frequency appropriately to produce a pulse signal having a given pulse width. For example, if only a slight part of a heating substance of a head is energized, a voltage of a 15V output of a constant-voltage power source 9 hardly drops and is applied to the heating resistor, and an oscillator 7 oscillates at 20kHz to produce a pulse of 0.5msec by means of the frequency divider 8. On the contrary, if a group of the heating resistors is totally energized and the output voltage of the power source 9 decreases to 11V, the oscillator 7 oscillates at 10kHz to produce a pulse width of 1.0msec by means of the frequency divider 8.
JP3871381A 1981-03-19 1981-03-19 Heat-sensitive recorder Granted JPS57152970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3871381A JPS57152970A (en) 1981-03-19 1981-03-19 Heat-sensitive recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3871381A JPS57152970A (en) 1981-03-19 1981-03-19 Heat-sensitive recorder

Publications (2)

Publication Number Publication Date
JPS57152970A true JPS57152970A (en) 1982-09-21
JPS6351104B2 JPS6351104B2 (en) 1988-10-12

Family

ID=12532957

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3871381A Granted JPS57152970A (en) 1981-03-19 1981-03-19 Heat-sensitive recorder

Country Status (1)

Country Link
JP (1) JPS57152970A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS608048U (en) * 1983-06-28 1985-01-21 ソニー株式会社 thermal printing device
JPS6377758A (en) * 1986-09-19 1988-04-07 Victor Co Of Japan Ltd Heat sensitive transfer gradation controller
JPS63114671A (en) * 1986-10-31 1988-05-19 Kubota Ltd Thermal head driver

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52109945A (en) * 1975-11-06 1977-09-14 Seiko Epson Corp Voltage compensation control system for thermal printer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52109945A (en) * 1975-11-06 1977-09-14 Seiko Epson Corp Voltage compensation control system for thermal printer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS608048U (en) * 1983-06-28 1985-01-21 ソニー株式会社 thermal printing device
JPS6377758A (en) * 1986-09-19 1988-04-07 Victor Co Of Japan Ltd Heat sensitive transfer gradation controller
JPS63114671A (en) * 1986-10-31 1988-05-19 Kubota Ltd Thermal head driver

Also Published As

Publication number Publication date
JPS6351104B2 (en) 1988-10-12

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