Device for writing on thermographic material

US6325474A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Wolfram Betzold · Grevesmühlen, DE
• Leo Oelbrandt · Kruibeke, BE
• Friedrich Stumpf
• Thomas Zehetmaier · Neufarn, DE
• Ivan Hoogmartens · Wilrijk, BE
• Luc Leenders · Herentals, BE
• Hans Strijckers · Mortsel, BE
• Herbert Gebele · Sauerlach, DE
• Franz Kappeler · Puchheim, DE

Key dates

• Filing date: Apr 19, 2000
• Grant date: Dec 4, 2001
• Expiry date: Apr 19, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41J2/4753
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a device (1) for writing on thermographic material (5). The inventive device (1) comprises a heater (20) with which the thermographic material (5) is preheated to a temperature, which is lower than a writing temperature. The thermographic material (5) can be written on with a writing instrument (10) which is distanced from the thermographic material (5) after input of an information signal (s(t)). The writing instrument (10) has a plurality of individually controllable point sources (30-33; 51-53). The thermographic material (5) can be written on in a point-by-point manner with said point sources (30-33; 51-53).