| 摘要 |
A finisher for an image forming apparatus includes a pair of rotatable downstream rollers and a pair of rotatable upstream roller between which a path on which an imaged medium travels. The finisher determines when a trailing edge of the medium is about to leave a nip of the upstream rollers and then stops a leading edge of the medium. By stopping the leading edge of the medium, the medium buckles and the trailing edge registers against the upstream nip line. A finishing device performs a hole punch, staple, or other finishing operation to the medium when the trailing edge registers against the upstream nip line. The finishing operation is performed at a speed equal to or greater than a speed at which the image forming apparatus forms the image on the medium and outputs the medium to the finisher.
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