| 摘要 |
PURPOSE:To easily and accurately control a thermal recording material to desired preheating temp. and to simplify constitution. CONSTITUTION:A heating means 12 applying heat energy to a thermal recording material S to heat the same to predetermined color forming temp., a preheating means 14 preheating the thermal recording material S to predetermined temp. below the color forming temp., a detection means 16 detecting the transmissivity of the preheated part of the thermal recording material S and the control part 19 for controlling the heating means 12, the preheating means 14 and the detection means 16 are provided. |
