| 摘要 |
PROBLEM TO BE SOLVED: To solve leaning of paper sheets against a wall, on a collection part.SOLUTION: A bill processing device 100 comprises a binding stacker 4 and a control unit 120 for controlling the binding stacker 4. The binding stacker 4 includes: a stage 41 moving in a lamination direction of bills B; a side wall 47 facing a first side b1 of the collected bills B; and a first engagement groove 48 to which the first side b1 of the bills B which lean against the side wall 47 and which are collected is hooked. In a state in which the bills B lean against the side wall 47 and are laminated, and an end part including the first side b1 of the bills B is warped in one side of the lamination direction, the control unit 120 moves the stage 41 to the same side as the warping side of the bills B in the lamination direction, hooks the first side b1 to the first engagement groove 48, and further moves the stage 41 to the same side as the warping sid of the bills B in the lamination direction for pushing the bills B leaning against the side wall 47 to a collection position. |
