EP0575668A3 - - Google Patents

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Publication number
EP0575668A3
EP0575668A3 EP19920250246 EP92250246A EP0575668A3 EP 0575668 A3 EP0575668 A3 EP 0575668A3 EP 19920250246 EP19920250246 EP 19920250246 EP 92250246 A EP92250246 A EP 92250246A EP 0575668 A3 EP0575668 A3 EP 0575668A3
Authority
EP
European Patent Office
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
EP19920250246
Other versions
EP0575668A2 (de
EP0575668B1 (de
Inventor
Wolfgang Dr. Thiel
Stephan Guenther
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.)
Francotyp Postalia GmbH
Original Assignee
Francotyp Postalia GmbH
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 Francotyp Postalia GmbH filed Critical Francotyp Postalia GmbH
Publication of EP0575668A2 publication Critical patent/EP0575668A2/de
Publication of EP0575668A3 publication Critical patent/EP0575668A3/xx
Application granted granted Critical
Publication of EP0575668B1 publication Critical patent/EP0575668B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41J2/36—Print density control
EP92250246A 1992-06-26 1992-09-04 Ansteuerschaltung für eine elektrothermische Druckvorrichtung mit Widerstandsband Expired - Lifetime EP0575668B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4221275A DE4221275C2 (de) 1992-06-26 1992-06-26 Ansteuerschaltung für eine elektrothermische Druckvorrichtung mit Widerstandsband
DE4221275 1992-06-26

Publications (3)

Publication Number Publication Date
EP0575668A2 EP0575668A2 (de) 1993-12-29
EP0575668A3 true EP0575668A3 (el) 1994-03-16
EP0575668B1 EP0575668B1 (de) 1997-03-12

Family

ID=6462061

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92250246A Expired - Lifetime EP0575668B1 (de) 1992-06-26 1992-09-04 Ansteuerschaltung für eine elektrothermische Druckvorrichtung mit Widerstandsband

Country Status (4)

Country Link
US (1) US5482386A (el)
EP (1) EP0575668B1 (el)
CA (1) CA2080427A1 (el)
DE (4) DE4221275C2 (el)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4221275C2 (de) * 1992-06-26 1994-04-21 Francotyp Postalia Gmbh Ansteuerschaltung für eine elektrothermische Druckvorrichtung mit Widerstandsband
GB9410273D0 (en) * 1994-05-20 1994-07-13 Prestek Ltd Printing apparatus
US5702188A (en) * 1995-07-18 1997-12-30 Graphtec Corporation Thermal head and head drive circuit therefor
SE9702933L (sv) * 1997-08-14 1998-07-06 Intermec Ptc Ab Metod för energistyrning av tryck med transferband och direkttermomaterial i termoskrivare

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4434356A (en) * 1982-12-22 1984-02-28 International Business Machines Corporation Regulated current source for thermal printhead
JPS6246659A (ja) * 1985-08-26 1987-02-28 Toshiba Corp プリンタのサ−マルヘツド駆動制御装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2100611C3 (de) * 1970-01-09 1978-05-03 Ing. C. Olivetti & C., S.P.A., Ivrea, Turin (Italien) Elektrothermische Druckvorrichtung
JPS6027577B2 (ja) * 1980-03-12 1985-06-29 株式会社東芝 熱記録装置
US4350449A (en) * 1980-06-23 1982-09-21 International Business Machines Corporation Resistive ribbon printing apparatus and method
JPS5763280A (en) * 1980-10-03 1982-04-16 Ricoh Co Ltd Driving circuit for heat-sensitive recorder
US4345845A (en) * 1981-06-19 1982-08-24 International Business Machines Corporation Drive circuit for thermal printer
US4470714A (en) * 1982-03-10 1984-09-11 International Business Machines Corporation Metal-semiconductor resistive ribbon for thermal transfer printing and method for using
JPS60143981A (ja) * 1983-12-29 1985-07-30 Konishiroku Photo Ind Co Ltd サ−マルプリンタ
US4531134A (en) * 1984-03-26 1985-07-23 International Business Machines Corporation Regulated voltage and approximate constant power for thermal printhead
JPS60210472A (ja) * 1984-04-03 1985-10-22 Konishiroku Photo Ind Co Ltd サ−マルヘツド保護回路
US4575731A (en) * 1984-10-30 1986-03-11 International Business Machines Corporation Electro resistive printhead drive level sensing and control
GB2169853B (en) * 1985-01-19 1988-11-02 Francotyp Postalia Gmbh Improvements in movement monitoring devices
JPS637952A (ja) * 1986-06-30 1988-01-13 Matsushita Electric Ind Co Ltd 通電記録装置
EP0301891B1 (en) * 1987-07-31 1992-01-29 Kabushiki Kaisha Toshiba Electrothermal printer with a resistive ink ribbon
US5063394A (en) * 1988-07-26 1991-11-05 Kabushiki Kaisha Toshiba Thermal recording apparatus and print head
DE3833746A1 (de) * 1988-09-30 1990-04-05 Siemens Ag Thermodruckverfahren mit vorheizung
JPH074644Y2 (ja) * 1989-11-10 1995-02-01 アルプス電気株式会社 負荷制御回路の自己診断回路
DE4214545C2 (de) * 1992-04-29 1996-08-14 Francotyp Postalia Gmbh Anordnung für eine ETR-Druckkopfansteuerung
DE4221275C2 (de) * 1992-06-26 1994-04-21 Francotyp Postalia Gmbh Ansteuerschaltung für eine elektrothermische Druckvorrichtung mit Widerstandsband

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4434356A (en) * 1982-12-22 1984-02-28 International Business Machines Corporation Regulated current source for thermal printhead
JPS6246659A (ja) * 1985-08-26 1987-02-28 Toshiba Corp プリンタのサ−マルヘツド駆動制御装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 11, no. 234 (M - 611) 30 July 1987 (1987-07-30) *

Also Published As

Publication number Publication date
DE4342508A1 (de) 1995-06-14
US5482386A (en) 1996-01-09
DE4221275C2 (de) 1994-04-21
DE4221275A1 (de) 1994-01-13
EP0575668A2 (de) 1993-12-29
DE4342510C2 (de) 1997-03-20
DE4342510A1 (de) 1995-06-14
CA2080427A1 (en) 1993-12-27
DE59208192D1 (de) 1997-04-17
DE4342508C2 (de) 1997-05-22
EP0575668B1 (de) 1997-03-12

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