| 摘要 |
PROBLEM TO BE SOLVED: To record the traces of the maintenance operation of a device without leakage in a system for controlling the operation of the device such as a cash processor, a prepaid card preparing device. SOLUTION: With respect for the restarting instruction of operation after the device 4 falls into a stopping state because of an error, etc., restarting of operating the device 4 is permitted with the completion of identifying an operation as a condition. Thus, authentication data such as the ID, etc., of the operator can be recorded as the traces every maintenance operation.
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