Canon imageCLASS D1350 - Manual (Page 152)

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Troubleshooting
The machine cannot be used while the power supply is cut off.
When there is a power failure, you can or cannot perform the following fax operations.
• You cannot send or receive faxes.
• You may not be able to make a call using the external telephone, depending on your telephone system.
• You may be able to answer a call using the external telephone, depending on your telephone system.
IMPORTANT
To save documents in memory when the power supply is cut off
If the power is lost due to a power failure or the power cord is accidentally unplugged, data can be stored in memory for approximately 5 minutes
so you can back it up. To store document in the memory requires the printer’s built-in battery must be charged for more than 6 hours. (The printer’s
power switch is turned ON for more than 16 hours.)
When a Power Failure Occurs