Canon imageRUNNER 6570 Reference Manual page 534

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9-62
Clearing Paper Jams
Gently push the fixing unit and duplexing unit back into the
machine.
CAUTION
When pushing the fixing unit and duplexing unit back into the machine, be
careful not to get your fingers caught, as this may result in personal injury.
Return the green lever to its original position.
Close the front cover of the main unit.