Global Patent Index - EP 1104699 A1

EP 1104699 A1 20010606 - Method and apparatus for thermal recording

Title (en)

Method and apparatus for thermal recording

Title (de)

Thermoaufzeichnungsverfahren-und-Vorrichtung

Title (fr)

Méthode et dispositif d'enregistrement thermique

Publication

EP 1104699 A1 20010606 (EN)

Application

EP 99204070 A 19991201

Priority

EP 99204070 A 19991201

Abstract (en)

A method for recording an image on a thermographic material (m) comprising a step of providing a thermographic material having a thermal imaging element, a transparent thermal head (TH) having energisable heating elements (Hi), and a radiation beam (L), and a step of activating heating elements of the thermal head and imagewise and scanwise exposing the imaging element by means of the radiation beam. Herein, the total energy resulting from the thermal head and from the radiation beam has a level corresponding to a gradation of the image to be recorded on the imaging element. Moreover, the imagewise and scanwise exposing is carried out by passing the radiation beam through transparent parts of the thermal head. Further, different embodiments are disclosed, such as activating of heating elements and exposing of the radiation beam carried out partly simultaneously, an additionally preheating the imaging element, holding the thermographic material on one and the same means during both the imagewise exposing step and the heating step. <IMAGE>

IPC 1-7

B41J 2/32; B41J 2/475

IPC 8 full level

B41J 2/32 (2006.01); B41J 2/475 (2006.01)

CPC (source: EP)

B41J 2/32 (2013.01); B41J 2/4753 (2013.01)

Citation (applicant)

Citation (search report)

  • [A] EP 0792750 A2 19970903 - MITSUBISHI ELECTRIC CORP [JP]
  • [A] JP S60208787 A 19851021 - OKI ELECTRIC IND CO LTD & US 4763136 A 19880809 - ISOBE MINORU [JP]
  • [A] PATENT ABSTRACTS OF JAPAN vol. 014, no. 276 (M - 0984) 14 June 1990 (1990-06-14)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 1996, no. 04 30 April 1996 (1996-04-30)
  • [A] PATENT ABSTRACTS OF JAPAN vol. 013, no. 076 (M - 800) 21 February 1989 (1989-02-21)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 1104699 A1 20010606; EP 1104699 B1 20050713; DE 69926131 D1 20050818; JP 2001162845 A 20010619

DOCDB simple family (application)

EP 99204070 A 19991201; DE 69926131 T 19991201; JP 2000362609 A 20001129