摘要 |
PROBLEM TO BE SOLVED: To improve brightness rising characteristics of a light source for optical fixing in a thermal recorder recording a color image on a color thermal recording material through thermal recording and optical fixing. SOLUTION: A heat conduction plate 7 fixed with a thermal head 3 and an optical fixing unit 5 is fixed to a supporting plate 8. When the heating element 10 in a thermal head 3 is driven to be heated at the time of thermal recording onto the thermal coloring layer of a recording sheet P, excess heat generated from the heating element 10 is conducted to the optical fixing unit 5 through the heat conduction plate 7. At the time of subsequent optical fixing to the thermal coloring layer of the recording sheet P, the optical fixing unit 5 is preheated and the brightness rising characteristics of light sources 12, 13 for the optical fixing unit 5 are improved through ambient temperature rise.
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