FR2457771B1 - - Google Patents

Info

Publication number
FR2457771B1
FR2457771B1 FR7914179A FR7914179A FR2457771B1 FR 2457771 B1 FR2457771 B1 FR 2457771B1 FR 7914179 A FR7914179 A FR 7914179A FR 7914179 A FR7914179 A FR 7914179A FR 2457771 B1 FR2457771 B1 FR 2457771B1
Authority
FR
France
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.)
Expired
Application number
FR7914179A
Other languages
French (fr)
Other versions
FR2457771A1 (en
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7914179A priority Critical patent/FR2457771A1/en
Publication of FR2457771A1 publication Critical patent/FR2457771A1/en
Application granted granted Critical
Publication of FR2457771B1 publication Critical patent/FR2457771B1/fr
Granted 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
    • B41J2/355—Control circuits for heating-element selection
    • 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
FR7914179A 1979-06-01 1979-06-01 Voltage regulator for print head of thermal printer - counts interval between print lines and regulates print head temperature for uniform print density Granted FR2457771A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7914179A FR2457771A1 (en) 1979-06-01 1979-06-01 Voltage regulator for print head of thermal printer - counts interval between print lines and regulates print head temperature for uniform print density

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7914179A FR2457771A1 (en) 1979-06-01 1979-06-01 Voltage regulator for print head of thermal printer - counts interval between print lines and regulates print head temperature for uniform print density

Publications (2)

Publication Number Publication Date
FR2457771A1 FR2457771A1 (en) 1980-12-26
FR2457771B1 true FR2457771B1 (en) 1984-05-18

Family

ID=9226165

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7914179A Granted FR2457771A1 (en) 1979-06-01 1979-06-01 Voltage regulator for print head of thermal printer - counts interval between print lines and regulates print head temperature for uniform print density

Country Status (1)

Country Link
FR (1) FR2457771A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS574783A (en) * 1980-06-13 1982-01-11 Canon Inc Controlling system for surface temperature of thermal head
JPS5714061A (en) * 1980-07-01 1982-01-25 Ricoh Co Ltd Heat-sensitive recording system
DE3273429D1 (en) * 1981-06-19 1986-10-30 Toshiba Kk Thermal printer
AU567487B2 (en) * 1982-01-25 1987-11-26 Sony Corporation Thermal printer
US4542281A (en) * 1984-03-02 1985-09-17 Combustion Engineering, Inc. Thermal printer contrast control

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1548792C3 (en) * 1966-04-07 1975-06-05 Siemens Ag, 1000 Berlin Und 8000 Muenchen Circuit arrangement for setting the heating current of a heated writing pointer
US3577137A (en) * 1968-12-31 1971-05-04 Texas Instruments Inc Temperature compensated electronic display
IT939920B (en) * 1971-10-04 1973-02-10 Olivetti & Co Spa THERMOGRAPHIC PRINTING UNIT
AU460872B2 (en) * 1972-02-23 1975-05-08 Matsushita Electric Industrial Co., Ltd. Heat-sensitive record
US3934695A (en) * 1974-09-23 1976-01-27 Hewlett-Packard Company Method and apparatus for enhancing and maintaining character quality in thermal printers
US4027761A (en) * 1975-10-21 1977-06-07 Ncr Corporation Matrix print head impact energy control
JPS52108732A (en) * 1976-03-10 1977-09-12 Oki Electric Ind Co Ltd Dot printer

Also Published As

Publication number Publication date
FR2457771A1 (en) 1980-12-26

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Legal Events

Date Code Title Description
ST Notification of lapse