| 摘要 |
An automatic shut-off mechanism for a copying machine. A timing motor determines when no new original document to be copied has been fed into the machine for 60 seconds. At the completion of the timing cycle, an auxiliary contact in the main power line is opened. In order to close this contact, the main on-off switch on the front panel of the machine must first be turned off, the auxiliary contact being closed at this time by a mechanical linkage to the main switch. Whenever a new document to be copied is fed into the machine during the running of the timing motor, the motor resets to the "zero" time position and the timing cycle begins once again.
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