JPS56164881A - Driving method for thermal head - Google Patents

Driving method for thermal head

Info

Publication number
JPS56164881A
JPS56164881A JP6899280A JP6899280A JPS56164881A JP S56164881 A JPS56164881 A JP S56164881A JP 6899280 A JP6899280 A JP 6899280A JP 6899280 A JP6899280 A JP 6899280A JP S56164881 A JPS56164881 A JP S56164881A
Authority
JP
Japan
Prior art keywords
data
driven
time lags
thermal heads
monitored
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
JP6899280A
Other languages
Japanese (ja)
Inventor
Tadamitsu Ryu
Akio Mukai
Itaru Fukao
Hiroshi Oki
Fujio Sekiguchi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP6899280A priority Critical patent/JPS56164881A/en
Publication of JPS56164881A publication Critical patent/JPS56164881A/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

Landscapes

  • Electronic Switches (AREA)
  • Fax Reproducing Arrangements (AREA)

Abstract

PURPOSE:To reduce the capacity of an electric source for driving electric power by a method wherein respective thermal heads formed by dividing a plularity of heating elements arranged in one row into n divisions are driven with time lags in accordance with the number of input data. CONSTITUTION:The inputted data are held by shift registers 19a, 19b..., on the other hand, the total number of the inputted data are monitored by a data number monitoring circuit 16 while the number of data with respect to which an electric current should be flowed into the thermal head ([1] data) is monitored by a [1] data monitoring circuit 17. Next, the number of [1] data is divided by the total number of data in a gate control circuit and in case the obtained ratio between both of the data is less than a predetermined value 1/n, respective gates 20a, 20b... are opened concurrently and respective thermal heads 11a, 11b... are driven concurrently, while in case the obtained ratio is higher than the predetermined value 1/n, respective gates are opened with time lags and respective thermal heads are driven with time lags.
JP6899280A 1980-05-26 1980-05-26 Driving method for thermal head Pending JPS56164881A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6899280A JPS56164881A (en) 1980-05-26 1980-05-26 Driving method for thermal head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6899280A JPS56164881A (en) 1980-05-26 1980-05-26 Driving method for thermal head

Publications (1)

Publication Number Publication Date
JPS56164881A true JPS56164881A (en) 1981-12-18

Family

ID=13389660

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6899280A Pending JPS56164881A (en) 1980-05-26 1980-05-26 Driving method for thermal head

Country Status (1)

Country Link
JP (1) JPS56164881A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520532A1 (en) * 1982-01-25 1983-07-29 Sony Corp THERMAL HEAD CONTROL DEVICE FOR THERMAL PRINTER
JPH0238066A (en) * 1988-07-28 1990-02-07 Toshiba Corp Thermal recording apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520532A1 (en) * 1982-01-25 1983-07-29 Sony Corp THERMAL HEAD CONTROL DEVICE FOR THERMAL PRINTER
JPH0238066A (en) * 1988-07-28 1990-02-07 Toshiba Corp Thermal recording apparatus

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