Thermal recording system for preheating a thermosensitive record

Details Thermal recording system for preheating a thermosensitive record Thermal recording system for preheating a thermosensitive record

1995-06-06

1999-06-01

Metjahic, Safet

Incremental printing of symbolic information

Thermal marking apparatus or processes

Preheating

347224, B41J 238, B41J 2435

Patent

active

059092327

ABSTRACT:
A thermal recording system for recording an image on a thermo-sensitive recording medium using a laser beam under a preheated condition of the thermo-sensitive recording medium. In the thermal recording system, a preheating device preheats the thermo-sensitive recording medium which has leuco dyes, a developer and light-absorbing dyes all provided on a support, and which develops color in a continuous tone at a density corresponding to the energy of the applied heat, to a predetermined temperature less than a color-developing temperature. A heating-beam generating device allows a laser beam to scan the thermo-sensitive recording medium so as to heat the thermo-sensitive recording medium to a predetermined color-developing temperature. Thus, the heating-beam generating device can control the laser beam in a sufficient control range, thereby making it possible to record an image on the thermo-sensitive recording medium with high accuracy.

REFERENCES:
patent: 3693183 (1972-09-01), Lemke
patent: 4355318 (1982-10-01), Miyauchi
patent: 4704621 (1987-11-01), Van Cooten et al.
patent: 4998121 (1991-03-01), Koh et al.
patent: 5164742 (1992-11-01), Baek et al.
patent: 5296439 (1994-03-01), Maruyama et al.
IBM Technical Disclosure Bulletin, vol. 1, No. 6, Apr., 1959, Armond, NY, USA, p. 4, M.P. Prater "Superthresshold Impact Heat Printing".

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