| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image forming device capable of clearly sorting paper sheets at low cost without degrading the image quality. Ž<P>SOLUTION: The image forming device 100 includes a paper discharge tray 35, two pairs of paper discharge rollers 50A, 50B, and a main control unit 65. Processed paper sheets are stacked on the paper discharge tray 35. The paper discharge roller pairs are of ball type, and discharge the processed paper sheets to a paper discharge stacking unit. The two pairs of paper discharge rollers 50A, 50B are arranged along the width direction orthogonal to the discharging direction of the paper sheets, and their rotational speed is adjustable for each pair. The main control unit 65 executes the rotational processing for rotating the paper sheets at the predetermined timing by differentiating the rotational speeds of the two pairs of paper discharge rollers 50A, 50B. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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