JPS5515808A - Heat sensitive recording apparatus - Google Patents

Heat sensitive recording apparatus

Info

Publication number
JPS5515808A
JPS5515808A JP8775278A JP8775278A JPS5515808A JP S5515808 A JPS5515808 A JP S5515808A JP 8775278 A JP8775278 A JP 8775278A JP 8775278 A JP8775278 A JP 8775278A JP S5515808 A JPS5515808 A JP S5515808A
Authority
JP
Japan
Prior art keywords
voltage
source
sensitive recording
heat sensitive
detecting
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
JP8775278A
Other languages
Japanese (ja)
Other versions
JPS5916933B2 (en
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 JP53087752A priority Critical patent/JPS5916933B2/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 JPS5515808A publication Critical patent/JPS5515808A/en
Publication of JPS5916933B2 publication Critical patent/JPS5916933B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • 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)
  • Facsimile Heads (AREA)

Abstract

PURPOSE:To fix color depth by detecting electric voltage or current at power source and in response to its output controlling the time of supply to the heat sensitive recording head. CONSTITUTION:Picture signal 11 to be recorded is imput into disposition of exothermic resistance elements of thermal head 12 in time series. One end of the secondary winding of transformer 19 for transforming commercial alternating current source is connected to a source terminal 2 of the thermal head 12. For detecting voltage of source terminal 12, voltage detecting circuit 23 is mounted and control picture signal 11 and clock 13 by the output of the detecting circuit 23. Whereby, time of supply is controlled in response to change of the source voltage and the color depth is fixed in spite of change of source voltage.
JP53087752A 1978-07-18 1978-07-20 thermal recording device Expired JPS5916933B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP53087752A JPS5916933B2 (en) 1978-07-20 1978-07-20 thermal recording device
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
JP53087752A JPS5916933B2 (en) 1978-07-20 1978-07-20 thermal recording device

Publications (2)

Publication Number Publication Date
JPS5515808A true JPS5515808A (en) 1980-02-04
JPS5916933B2 JPS5916933B2 (en) 1984-04-18

Family

ID=13923662

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53087752A Expired JPS5916933B2 (en) 1978-07-18 1978-07-20 thermal recording device

Country Status (1)

Country Link
JP (1) JPS5916933B2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
JPS5916933B2 (en) 1984-04-18

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