| 摘要 |
In an image system, a suction disc is used for adhering to paper to lift up the paper. A drawing device pulls a perimeter of a flexible and deformable suction disc to deform the suction disc, and the pulling force is released when the suction disc contacts the paper, resulting in the suction disc adhering to the paper. The drawing device pulls the perimeter of the suction disc again that the adhering force between the suction disc and the paper is lost in order to drop the paper.
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