SHEET PERFORATION DEVICE AND ITS CONTROL METHOD

摘要

A paper-sheet punching device shown in FIG. 4 includes a motor 22 for driving a reciprocatingly movable punching blade 21 and is provided with a punching process unit 20' for punching two or more holes at one end of paper-sheets 3 and with a CPU 55 for controlling this unit. The CPU 55 detects whether the punching blades 21 rushes into a home position in which the stop position of the punching blades 21 is allowed, executes reverse rotation brake control on the motor 22 for a predetermined period of time from the point of time when the punching blades 21 rushes into the home position, and prolongs the reverse rotation brake control on the motor 22 after the punching blades 21 reaches a predetermined position. It becomes possible to stop the punching blade within the home position when the punching blade stops.