MEDIUM PROCESSING APPARATUS, IMAGE FORMATION APPARATUS, AND MEDIUM DISCHARGE MECHANISM

摘要

An apparatus includes a discharge mechanism including a drive roller rotatable in a normal direction to discharge a medium and in a reverse direction reversed to the normal direction, and a driven roller in contact with the drive roller and configured to be rotated by the rotation of the drive roller. The apparatus also includes a stacker on which the medium discharged from the discharge mechanism is to be stacked. The driven roller is movable in position depending on the rotation of the drive roller in the normal direction or the reverse direction, such that the driven roller is located at a first position in the vicinity of the stacker when the drive roller is rotating in the normal direction, and the driven roller is located at a second position further away from the stacker than the first position when the drive roller is rotating in the reverse direction.

主权项

1. A medium processing apparatus comprising:
a discharge mechanism including a drive roller configured to be rotatable in a normal direction to discharge a medium and in a reverse direction reversed to the normal direction, and a driven roller biased to come into pressure contact with the drive roller, and configured to be rotated by the rotation of the drive roller; and a stacker on which the medium discharged from the discharge mechanism is to be stacked, wherein the driven roller is disposed below the drive roller, the driven roller is supported to be movable in a rotation direction of the drive roller depending on the rotation of the drive roller in the normal direction or the reverse direction, the driven roller is located at a first position in vicinity of the stacker when the drive roller is rotating in the normal direction, and the driven roller is located at a second position further away from the stacker than the first position when the drive roller is rotating in the reverse direction.