JPS57208281A - Heat-sensitive recorder - Google Patents

Heat-sensitive recorder

Info

Publication number
JPS57208281A
JPS57208281A JP56094618A JP9461881A JPS57208281A JP S57208281 A JPS57208281 A JP S57208281A JP 56094618 A JP56094618 A JP 56094618A JP 9461881 A JP9461881 A JP 9461881A JP S57208281 A JPS57208281 A JP S57208281A
Authority
JP
Japan
Prior art keywords
circuit group
signal data
output
latch circuit
recording signal
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
JP56094618A
Other languages
Japanese (ja)
Inventor
Takashi Saito
Kazumi Komiya
Takashi Ozeki
Mamoru Mizuguchi
Tamio Saito
Takahiko Abe
Koji Namiki
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.)
Toshiba Corp
Nippon Telegraph and Telephone Corp
Original Assignee
Toshiba Corp
Nippon Telegraph and Telephone Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Nippon Telegraph and Telephone Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56094618A priority Critical patent/JPS57208281A/en
Publication of JPS57208281A publication Critical patent/JPS57208281A/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
    • B41J2/375—Protection arrangements against overheating

Landscapes

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

Abstract

PURPOSE:To prevent heating resistors from overheating due to accumulation of heat, by a method wherein a signal indicating the coincidence between each output of the first latch circuit group for latching parallel outputs from a shift register and each inverted output of the second latch circuit group is used as recording signal data. CONSTITUTION:The first latch circuit group 8 for latching the parallel outputs from the shift register 6 for converting the recording signal from series form into parallel form is provided, and the second latch circuit group 10 for latching each output from the circuit group 8 is provided. The signals indicating the coincidence between each output (d) from the circuit group 8 and each inverted output (f) from the circuit group 10 are used as the recording signal data (i) fed to driving elements 2 provided in correspondence to each of the heating resistors 1. Control lines 13, 15 are fed with control signals having pulse widths of t1, t2, respectively. When the same bits of the recording signal data are successively black signal data, the voltage impressing time for the heating resistor 1 is t1 which is shorter than the voltage impressing time t2 in the case where the black signal data are not generated successively.
JP56094618A 1981-06-19 1981-06-19 Heat-sensitive recorder Pending JPS57208281A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56094618A JPS57208281A (en) 1981-06-19 1981-06-19 Heat-sensitive recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56094618A JPS57208281A (en) 1981-06-19 1981-06-19 Heat-sensitive recorder

Publications (1)

Publication Number Publication Date
JPS57208281A true JPS57208281A (en) 1982-12-21

Family

ID=14115237

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56094618A Pending JPS57208281A (en) 1981-06-19 1981-06-19 Heat-sensitive recorder

Country Status (1)

Country Link
JP (1) JPS57208281A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59150767A (en) * 1983-01-31 1984-08-29 Toshiba Corp Control system of thermal printing head
JPS59162066A (en) * 1983-03-07 1984-09-12 Hitachi Ltd Heat sensitive printing method and thermal printer
JPS6458170A (en) * 1987-08-28 1989-03-06 Nec Corp Print control circuit
US5543828A (en) * 1993-07-21 1996-08-06 Seiko Epson Corporation Recording apparatus having a print head drive apparatus with an IC drive circuit employing shift registers for handling drive data in sequential fashion and a method for driving the print head

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 (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59150767A (en) * 1983-01-31 1984-08-29 Toshiba Corp Control system of thermal printing head
JPS59162066A (en) * 1983-03-07 1984-09-12 Hitachi Ltd Heat sensitive printing method and thermal printer
JPS6458170A (en) * 1987-08-28 1989-03-06 Nec Corp Print control circuit
US5543828A (en) * 1993-07-21 1996-08-06 Seiko Epson Corporation Recording apparatus having a print head drive apparatus with an IC drive circuit employing shift registers for handling drive data in sequential fashion and a method for driving the print head

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