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JPS55142674A - Heat sensitive recording device - Google Patents

Heat sensitive recording device

Info

Publication number
JPS55142674A
JPS55142674A JP4978779A JP4978779A JPS55142674A JP S55142674 A JPS55142674 A JP S55142674A JP 4978779 A JP4978779 A JP 4978779A JP 4978779 A JP4978779 A JP 4978779A JP S55142674 A JPS55142674 A JP S55142674A
Authority
JP
Japan
Prior art keywords
recording
gate
supplied
signal
heat
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
JP4978779A
Other languages
Japanese (ja)
Other versions
JPS6022629B2 (en
Inventor
Norio Ishibashi
Kazuo Nakano
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 JP54049787A priority Critical patent/JPS6022629B2/en
Priority to US06/137,784 priority patent/US4284876A/en
Priority to CA000349846A priority patent/CA1162975A/en
Priority to DE8080301281T priority patent/DE3061138D1/en
Priority to EP80301281A priority patent/EP0018762B1/en
Publication of JPS55142674A publication Critical patent/JPS55142674A/en
Publication of JPS6022629B2 publication Critical patent/JPS6022629B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
    • H04N1/40031—Circuits exciting or modulating particular heads for reproducing continuous tone value scales for a plurality of reproducing elements simultaneously
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Heads (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To make it possible to carry out high speed recording of estimated concentration by estimating the heat regeneration state using a recording control clock period as a control unit of a recording power pulse width on the basis of the recording interval time common to respective lines and recording information pieces inherent to respective heat generating elements. CONSTITUTION:A recording interval time signal tw1-7 read out from a recording interval measuring memory 4 and a recording interval estimated time signal w are supplied in a comparator 5 to compare the intensities of signals tw1-7 and w with each other, and comparison results C1-7 are supplied to a parallel series register 7 and are supplied as comparison result series signals CS1-12 to filp-flops 81-32 through an OR gate 9. On the other hand, recorded information pieces D11-17, D21-27... of past lines renewed and memorized in a memory 10 are read out in repeated series in respective clock periods of a recording control clock h, and then imparted to the filp-flop 81-32. The output is then converted into a trigger signal Pt1-32 by an AND gate 111-32. This signal Pt1-32 is imparted to a heat-generating element 11-32 as a recording power pulse P1-32 through the AND gate 31-32.
JP54049787A 1979-04-24 1979-04-24 thermal recording device Expired JPS6022629B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP54049787A JPS6022629B2 (en) 1979-04-24 1979-04-24 thermal recording device
US06/137,784 US4284876A (en) 1979-04-24 1980-04-07 Thermal printing system
CA000349846A CA1162975A (en) 1979-04-24 1980-04-14 Thermal printing system
DE8080301281T DE3061138D1 (en) 1979-04-24 1980-04-21 Thermal printing apparatus
EP80301281A EP0018762B1 (en) 1979-04-24 1980-04-21 Thermal printing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54049787A JPS6022629B2 (en) 1979-04-24 1979-04-24 thermal recording device

Publications (2)

Publication Number Publication Date
JPS55142674A true JPS55142674A (en) 1980-11-07
JPS6022629B2 JPS6022629B2 (en) 1985-06-03

Family

ID=12840862

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54049787A Expired JPS6022629B2 (en) 1979-04-24 1979-04-24 thermal recording device

Country Status (1)

Country Link
JP (1) JPS6022629B2 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57136751U (en) * 1981-02-20 1982-08-26
JPS57169200U (en) * 1981-04-17 1982-10-25
JPS57208283A (en) * 1981-06-19 1982-12-21 Toshiba Corp Heat-sensitive recorder
JPS57208279A (en) * 1981-06-19 1982-12-21 Nippon Telegr & Teleph Corp <Ntt> Heat-sensitive recorder
JPS5867477A (en) * 1981-10-19 1983-04-22 Yokogawa Hokushin Electric Corp Control on thermal head in heat-sensitive recorder
JPS5867479A (en) * 1981-10-19 1983-04-22 Sharp Corp Heat-sensitive recorder
JPS58146176A (en) * 1982-02-24 1983-08-31 Nec Corp Apparatus for correcting intermediate tone
JPS58145746U (en) * 1982-03-29 1983-09-30 沖電気工業株式会社 thermal recording device
JPS58215376A (en) * 1982-06-08 1983-12-14 Toshiba Corp Heat-sensitive recorder
JPS6016066A (en) * 1983-07-07 1985-01-26 Matsushita Graphic Commun Syst Inc Picture recording system
JPH03118165A (en) * 1989-10-02 1991-05-20 Shinko Electric Co Ltd Printing control method for thermal printer

Citations (2)

* 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
JPS53113556A (en) * 1977-03-15 1978-10-04 Sanyo Electric Co Ltd Thermal printer

Patent Citations (2)

* 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
JPS53113556A (en) * 1977-03-15 1978-10-04 Sanyo Electric Co Ltd Thermal printer

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57136751U (en) * 1981-02-20 1982-08-26
JPS57169200U (en) * 1981-04-17 1982-10-25
JPS57208283A (en) * 1981-06-19 1982-12-21 Toshiba Corp Heat-sensitive recorder
JPS57208279A (en) * 1981-06-19 1982-12-21 Nippon Telegr & Teleph Corp <Ntt> Heat-sensitive recorder
JPS5867477A (en) * 1981-10-19 1983-04-22 Yokogawa Hokushin Electric Corp Control on thermal head in heat-sensitive recorder
JPS5867479A (en) * 1981-10-19 1983-04-22 Sharp Corp Heat-sensitive recorder
JPS58146176A (en) * 1982-02-24 1983-08-31 Nec Corp Apparatus for correcting intermediate tone
JPS58145746U (en) * 1982-03-29 1983-09-30 沖電気工業株式会社 thermal recording device
JPH0116611Y2 (en) * 1982-03-29 1989-05-16
JPS58215376A (en) * 1982-06-08 1983-12-14 Toshiba Corp Heat-sensitive recorder
JPS6016066A (en) * 1983-07-07 1985-01-26 Matsushita Graphic Commun Syst Inc Picture recording system
JPH03118165A (en) * 1989-10-02 1991-05-20 Shinko Electric Co Ltd Printing control method for thermal printer

Also Published As

Publication number Publication date
JPS6022629B2 (en) 1985-06-03

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