Patent ID: 8840100

Claim:
A paper sheet processing apparatus, comprising: a supporting unit which supports a bundle of stacked paper sheets; a binding processing unit which performs binding processing at least at two binding positions on the bundle of paper sheets; a pair of hold-down units which hold down the bundle of paper sheets by pressing the bundle of paper sheets against the supporting unit; a moving unit which moves at least one hold-down unit from among the pair of hold-down units so as to separate said at least one hold-down unit from the other hold-down unit in a direction in which the at least two binding positions are aligned in the bundle of paper sheets; and a control unit which controls the binding processing unit, the pair of hold-down units and the moving unit, wherein the control unit is configured to perform operations comprising: stacking a plurality of paper sheets on the supporting unit to form the bundle of paper sheets; holding down the bundle of paper sheets formed on the supporting unit by the pair of hold-down units; moving, by controlling the moving unit, said at least one hold-down unit of the pair of hold-down units while the pair of hold-down units are holding down the bundle of paper sheets on the supporting unit; and performing the binding processing between the pair of the hold-down units on the bundle of paper sheets by the binding processing unit.