JPS5514248A - Heat-sensitive recording method - Google Patents

Heat-sensitive recording method

Info

Publication number
JPS5514248A
JPS5514248A JP8677278A JP8677278A JPS5514248A JP S5514248 A JPS5514248 A JP S5514248A JP 8677278 A JP8677278 A JP 8677278A JP 8677278 A JP8677278 A JP 8677278A JP S5514248 A JPS5514248 A JP S5514248A
Authority
JP
Japan
Prior art keywords
thermal head
recording
heat
period
pulse
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
JP8677278A
Other languages
Japanese (ja)
Inventor
Kazuo Nakano
Toshiyuki Iwabuchi
Kazuji Yamamoto
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 JP8677278A priority Critical patent/JPS5514248A/en
Priority to DE2928304A priority patent/DE2928304C2/en
Priority to US06/057,976 priority patent/US4268838A/en
Priority to NL7905572A priority patent/NL7905572A/en
Publication of JPS5514248A publication Critical patent/JPS5514248A/en
Pending 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
    • H04N1/23—Reproducing arrangements
    • 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
    • B41J2/37—Print density control by compensation for variation in current
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/028—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by thermal printers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electronic Switches (AREA)
  • Fax Reproducing Arrangements (AREA)

Abstract

PURPOSE:To provide a heat-sensitive recording method suitable for use in facsimile capable of performing a high-speed and less expensive recording by making uye of a pulse current, which is obtained by full-wave retification of a commercial A.C. electric current, as the power for the thermal head and the holding of the recording signal is made for each pulse after the detection of the holding voltage. CONSTITUTION:An A.C. commercial power is transformed to a voltage suitable for use in a thermal head 12, by means of a power circuit 26, and is full-wave rectified by diodes 23, 24. The resulted pulse wave is applied to the source terminal 2 of the thermal head 2. When the control circuit detects the cease of the period Ts and commencement of a period Tv from the signal from a voltage detecting circuit 27, an image signal 11 and a clock are applied to this circuit to trigger the thyristor of the thermal head. This operation is stopped as the image signal 11 corresponding to the dots of a required number is held. A heat generating resistance element goes on to generate heat until the next period Ts to complete the recording.
JP8677278A 1978-07-18 1978-07-18 Heat-sensitive recording method Pending JPS5514248A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP8677278A JPS5514248A (en) 1978-07-18 1978-07-18 Heat-sensitive recording method
DE2928304A DE2928304C2 (en) 1978-07-18 1979-07-13 Control circuit for maintaining constant color intensity in a thermal recording apparatus
US06/057,976 US4268838A (en) 1978-07-18 1979-07-16 Thermal recording system
NL7905572A NL7905572A (en) 1978-07-18 1979-07-17 THERMAL REGISTRATION SYSTEM.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8677278A JPS5514248A (en) 1978-07-18 1978-07-18 Heat-sensitive recording method

Publications (1)

Publication Number Publication Date
JPS5514248A true JPS5514248A (en) 1980-01-31

Family

ID=13896033

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8677278A Pending JPS5514248A (en) 1978-07-18 1978-07-18 Heat-sensitive recording method

Country Status (1)

Country Link
JP (1) JPS5514248A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5210584A (en) * 1975-03-11 1977-01-26 Sanwa Dengiyou Kk Twisted power cable having no center space
JPS52105840A (en) * 1976-03-02 1977-09-05 Oki Electric Ind Co Ltd Thermal head
JPS5357844A (en) * 1976-11-05 1978-05-25 Toshiba Corp Drive device for heat-sensitive head
JPS5360239A (en) * 1976-11-11 1978-05-30 Toshiba Corp Drive device for thermal head

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5210584A (en) * 1975-03-11 1977-01-26 Sanwa Dengiyou Kk Twisted power cable having no center space
JPS52105840A (en) * 1976-03-02 1977-09-05 Oki Electric Ind Co Ltd Thermal head
JPS5357844A (en) * 1976-11-05 1978-05-25 Toshiba Corp Drive device for heat-sensitive head
JPS5360239A (en) * 1976-11-11 1978-05-30 Toshiba Corp Drive device for thermal head

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