| 摘要 |
PROBLEM TO BE SOLVED: To provide a charging operation method of a card system price for reducing cost sharing risk of a card system user trying to introduce a card system by setting a card price for a card maker to an amount of the ratio according to a using state of a card. SOLUTION: Amount data corresponding to an advance paid by a card user is recorded or stored in a recording means or a storage means of a prepaid card, and when the card user pays the price, price amount data equivalent to the price paid by the card user is subtracted and read from the amount data on the prepaid card by a card reader writer. The price amount data is sent to a host computer controlled by a card issuer, and after calculating a card using fee composed of a rate predetermined to the price amount data by a card using fee calculating means of the host computer, the card using fee is added to and stored in the storage means of the host computer. |
