Canon imageCLASS MF4450, Basic Operation Manual

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9-11
Tr
oubleshooting
The machine cannot be used while power supply is cut off.
The fax function during a power failure
• Documents cannot be sent or received.
• You may not be able to make a call using the external telephone depending on your telephone.
• You may be able to get a call using the external telephone depending on your telephone.
IMPORTANT
Data storage for when power supply is cut off
Even if power is lost due to a power failure or accidental unplugging, any sent or received documents stored in the memory are backed up for
approximately 5 minutes.
NOTE
Charging the built-in battery
It takes approximately 24 hours to fully charge the built-in battery after the machine is turned ON.
If the built-in battery has not been charged fully charged, documents stored in the memory may not be properly backed up.
If a Power Failure Occurs