PROBLEM TO BE SOLVED: To provide a money deposit apparatus and a money deposit and withdrawal apparatus each of which detects contamination of a conveyance path conveying coins, and a money deposit program.SOLUTION: The money deposit and withdrawal apparatus includes: a conveyance path for conveying coins input from an input hole; a conveyance belt arranged along the conveyance path for conveying coins along the conveyance path; an input sensor provided on the conveyance path for detecting that coins are input; an identification sensor provided on the conveyance path downstream in the coin conveyance direction of the input sensor for identifying denominations of coins; a classifying plate for classifying coins according to each denomination; a denomination sensor for detecting the classified coins according to each denomination; a storage part for storing the classified coins according to each denomination; a memory for storing a threshold table which stores a threshold according to each denomination and a measurement value table which stores a conveyance time according to each denomination; and a control unit for causing a display device to display an alarm when a conveyance time exceeds a threshold.
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