| 摘要 |
PROBLEM TO BE SOLVED: To provide a driving mechanism of a protective film in a printing surface processing device capable of keeping optimal tension of the protective film.SOLUTION: In a driving mechanism of a protective film in a thermal head type printing surface processing device for processing a printing surface in a porous printing material, by moving while pushing the porous printing material set in a tray against a thermal head in a state of interposing a protective film, a supply roll 3 and a winding roll 4 are arranged for winding the protective film 2 in a roll shape in front and in rear of the thermal head 1, and the winding roll 4 and the tray are provided with the driving mechanism 5 capable of reciprocally changing the operation direction, and a protective film rewinding return spring mechanism 6 is also built in the supply roll 3.SELECTED DRAWING: Figure 1 |
