| 摘要 |
PROBLEM TO BE SOLVED: To prevent heating unevenness by uniformly heating an entire original printing plate when the original printing plate is carried while being heated. SOLUTION: The temperature control of heaters 8a and 8b to heat the original printing plate 2 is executed by an atmosphere temperature sensor 11 or the like, and heat stably generated is shielded by controlling the rotation angle of reflectors 9a and 9b as a heat shielding member at a heating device 1. Also, the carrying speed of the original printing plate 2 is controlled by detecting the top end of the original printing plate 2 by a position detecting sensor 26, and the rotation angle of the reflectors 9a and 9b is controlled by detecting the rear end of the original printing plate 2, so that a heating amount is controlled in accordance with the part of the original printing plate 2. |
