| 摘要 |
PROBLEM TO BE SOLVED: To detect the abnormality of an outer diameter identification part before the outer diameter identification part becomes terribly dirty and the occurrence ratio of misrecognition increases, and to maintain the high accuracy of coin identification by providing the coin identification device with an abnormality judging means for judging the existence of abnormality in the outer diameter identification part and a judged result storing means for storing a judged result to output. SOLUTION: The abnormality judging means for judging the existence of abnormality in the outer diameter identification part 13 due to dirt when light receiving quantity at the time of recognizing that a coin carried on a carrier guide plate is a normal coin is within a 1st check area xA to xC or a 2nd check area xD to xB, on the other hand, judging no abnormality when the light receiving quantity is outside the check area, is composed of a CPU 41. A money-sorted abnormality counter table for accumulating the number of times of judging the existence of dirt in the 1st check area xA to xC and the number of times of judging the existence of dirt in the 2nd check area xD to xB in each money sort is formed in a RAM 43 as the judged result storing means for storing the judged result of the abnormality judging means so as to output it.
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