EP0943443A3 - Verfahren und Vorrichtung zum Bedrucken von Thermochromic-Schichten - Google Patents

Verfahren und Vorrichtung zum Bedrucken von Thermochromic-Schichten Download PDF

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Publication number
EP0943443A3
EP0943443A3 EP99104836A EP99104836A EP0943443A3 EP 0943443 A3 EP0943443 A3 EP 0943443A3 EP 99104836 A EP99104836 A EP 99104836A EP 99104836 A EP99104836 A EP 99104836A EP 0943443 A3 EP0943443 A3 EP 0943443A3
Authority
EP
European Patent Office
Prior art keywords
extinguishing
printing
thermo
color change
print pattern
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
EP99104836A
Other languages
English (en)
French (fr)
Other versions
EP0943443A2 (de
EP0943443B1 (de
Inventor
Wolfgang Gloger
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.)
Boewe Cardtec GmbH
Original Assignee
Protechno Card 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 Protechno Card GmbH filed Critical Protechno Card GmbH
Publication of EP0943443A2 publication Critical patent/EP0943443A2/de
Publication of EP0943443A3 publication Critical patent/EP0943443A3/de
Application granted granted Critical
Publication of EP0943443B1 publication Critical patent/EP0943443B1/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
    • B41J2/365—Print density control by compensation for variation in temperature

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  • Electronic Switches (AREA)

Abstract

Verfahren und Vorrichtung zum Löschen und Bedrucken eines Trägers (K) einer Thermochromic-Schicht (TS), wobei diese durch Aufheizen auf eine Löschtemperatur während einer Löschzeit in einen farblosen Grundzustand verbracht wird und durch lokales Verbringen über eine Farbumschlagtemperatur für eine Farbumschlagzeit und anschließendes schnelles Abkühlen unter die Löschtemperatur mit einem entsprechenden Druckmuster versehen wird, indem eine elektrisch beheizbare Thermopunktzeile (TZ) dem vorgesehenen Druckmuster gemäß punktuell entsprechend erhitzt und abgekühlt wird und jeweils anschließend in eine nächste Punktzeile verbracht wird, bis sämtliche zu schreibenden Punktzeilen unter die Thermopunktzeile (TZ) verbracht worden sind.
Eine einfache Vorrichtung zur Durchführung des Verfahrens ist geoffenbart.
EP99104836A 1998-03-17 1999-03-11 Verfahren und Vorrichtung zum Bedrucken von Thermochromic-Schichten Expired - Lifetime EP0943443B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19811539 1998-03-17
DE19811539A DE19811539A1 (de) 1998-03-17 1998-03-17 Verfahren und Vorrichtung zum Bedrucken von Thermochromic-Schichten

Publications (3)

Publication Number Publication Date
EP0943443A2 EP0943443A2 (de) 1999-09-22
EP0943443A3 true EP0943443A3 (de) 2000-04-05
EP0943443B1 EP0943443B1 (de) 2005-03-02

Family

ID=7861188

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99104836A Expired - Lifetime EP0943443B1 (de) 1998-03-17 1999-03-11 Verfahren und Vorrichtung zum Bedrucken von Thermochromic-Schichten

Country Status (2)

Country Link
EP (1) EP0943443B1 (de)
DE (2) DE19811539A1 (de)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61286170A (ja) * 1985-06-14 1986-12-16 Oki Electric Ind Co Ltd サ−マルヘツド駆動回路
US5371522A (en) * 1992-03-18 1994-12-06 Ricoh Company, Ltd. Apparatus for erasing and recording data in a thermosensitive recording medium
JPH0890934A (ja) * 1994-09-22 1996-04-09 Almex Inc 熱可逆特性を有するリライトカードの印字方法と印字装置
US5555010A (en) * 1991-03-29 1996-09-10 Kabushiki Kaisha Toshiba Rewritable recording apparatus
US5585320A (en) * 1992-03-09 1996-12-17 Ricoh Company, Ltd. Reversible thermosensitive coloring recording method, recording medium and recording apparatus for the recording method
JPH09174892A (ja) * 1995-12-28 1997-07-08 Oki Electric Ind Co Ltd 記録媒体処理装置
US5683189A (en) * 1986-12-27 1997-11-04 Canon Kabushiki Kaisha Thermal printer with erasing function using thinned heating energy generating patterns
FR2773107A1 (fr) * 1997-12-27 1999-07-02 Ricoh Kk Procede et appareil d'enregistrement thermique reversible

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61286170A (ja) * 1985-06-14 1986-12-16 Oki Electric Ind Co Ltd サ−マルヘツド駆動回路
US5683189A (en) * 1986-12-27 1997-11-04 Canon Kabushiki Kaisha Thermal printer with erasing function using thinned heating energy generating patterns
US5555010A (en) * 1991-03-29 1996-09-10 Kabushiki Kaisha Toshiba Rewritable recording apparatus
US5585320A (en) * 1992-03-09 1996-12-17 Ricoh Company, Ltd. Reversible thermosensitive coloring recording method, recording medium and recording apparatus for the recording method
US5371522A (en) * 1992-03-18 1994-12-06 Ricoh Company, Ltd. Apparatus for erasing and recording data in a thermosensitive recording medium
JPH0890934A (ja) * 1994-09-22 1996-04-09 Almex Inc 熱可逆特性を有するリライトカードの印字方法と印字装置
JPH09174892A (ja) * 1995-12-28 1997-07-08 Oki Electric Ind Co Ltd 記録媒体処理装置
FR2773107A1 (fr) * 1997-12-27 1999-07-02 Ricoh Kk Procede et appareil d'enregistrement thermique reversible

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 011, no. 155 (M - 589) 20 May 1987 (1987-05-20) *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 08 30 August 1996 (1996-08-30) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 11 28 November 1997 (1997-11-28) *

Also Published As

Publication number Publication date
DE19811539A1 (de) 1999-09-23
EP0943443A2 (de) 1999-09-22
DE59911671D1 (de) 2005-04-07
EP0943443B1 (de) 2005-03-02

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