| 摘要 |
This invention concerns a cashcard system for purchasing laundry services wherein the user is issued with a cashcard and a personal identification number. Each of the laundry facilities is provided with a terminal having means for verifying the user, means for verifying the card, means for updating the card with an amount requested by the user, means for saving the card identification and the amount revalued to 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 addition, the terminal in verifying the card compares the card to a previously rejected cards before updating the card with a new amount requested.
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