| 摘要 |
PROBLEM TO BE SOLVED: To prevent the fraudulent dispense of tokens by a fraudulent action. SOLUTION: The hopper motor of a hopper unit is driven, the output of a token dispensing sensor of the hopper unit is monitored, measurement by a timer is started from the time when the hopper motor is driven or from the time when the dispense of tokens is detected by the token dispensing sensor, error processing is carried out when the dispense of tokens is not detected by the token dispensing sensor for a period of time longer than a predetermined time. The threshold value of the timer is elongated by a timer setting section when a clearance button is frequently operated. A person doing fraudulent action can hardly obtain tokens by the clearance button by delaying the generation of hopper empty error. COPYRIGHT: (C)2008,JPO&INPIT
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