| 摘要 |
This invention concerns a cashcard system for purchasing laundry services wherein the user is issued with a cashcard and a personal identification num ber. Each of the laundry facilities is provided with a terminal having means for verifyin g the user, means for verifying the card, means for updating the card with an amount req uested by the user, means for saving the card identification and the amount revalued t o the card and means for storing and forwarding at a later time the amounts revalued to the cards for credit verification by a central computer remote to the terminal. In additio n, the terminal in verifying the card compares the card to a previously rejected cards befor e updating the card with a new amount requested.
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