| 摘要 |
PROBLEM TO BE SOLVED: To automatically remove stain on a sensor in an automatic change machine.SOLUTION: An automatic change machine 1 includes: a conveyance belt 110 that conveys a coin inserted through an input port to a coin storage portion; a sensor (a light emitting element 131 and a light receiving element 132) that detects the coin conveyed to the coin storage portion by the conveyance belt 110; a brush 110b that is provided to the conveyance belt 110 and removes foreign particles staying around the sensor in synchronization with operation of the conveyance belt 110; and a control unit that controls operation of the conveyance belt 110 in accordance with output of the sensor. |
