| 摘要 |
Method of operating a bill and coin changer wherein an existing bill validator from an existing bill acceptor and validator is replaced with a new bill validator which is operable to recognize both new style and old style United States currency. The bill validator is connected directly to the test vend inputs of an existing microprocessor control and a microprocessor control is conditioned so that when the new bill validator accepts and validates currency an output is provided from the bill validator to a test vend input of the microprocessor control which has a value which corresponds to the value of the currency validated in the bill validator, and wherein the microprocessor control, in response to the test vend input from the bill validator, dispenses a predetermined amount of change which is controlled by the value of the validated currency.
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