Paper sheet processing apparatus and paper sheet processing system

A paper sheet processing system comprising:

• a paper sheet processing apparatus;
• a gaming machine;
• and
• a server,
• the paper sheet processing apparatus including:
• a reading unit configured to read a paper sheet inserted through an insertion slot;
• a verification unit configured to verify the paper sheet using information on the paper sheet read by the reading unit;
• and
• a control unit configured to calculate a total amount from information on monetary amounts of successively inserted paper sheets and send image data of the paper sheets,
• the gaming machine including:
• a storage unit configured to store the total amount sent from the paper sheet processing apparatus, a predetermined monetary amount, and a predetermined number of games;
• a counter configured to count number of games in the gaming machine;
• a detector configured to detect cashout from the gaming machine;
• and
• a control unit configured to calculate a monetary amount to be cashed out and send a result of the calculation, a count value of the counter, and a detection signal of cashout to the server, and
• the server including a determination unit configured to, in response of detection of cashout from the gaming machine at the detector, compare the total amount with the predetermined amount stored in the storage unit, compare the count value of the counter with the predetermined number of games, calculate a rate of change in monetary amount at the cashout from an amount input before start of games and a remaining amount at end of the games, and determine whether the inserted paper sheets are wrong paper sheets in accordance with results of the comparison and a result of the calculation.