Situations that may be responsible for failure to turn OFF the power automatically at
the specified time
You are making some operation on the machine.
The machine is in the process of printing, cleaning, or some other operation.
An error message is displayed.
If the power cannot be turned OFF automatically at the specified time, a retry will be performed up to 10 times
at intervals of 1 minute. If the power cannot be turned OFF even after ten retries, auto shutdown will be
impossible for that day.