Canon C9075 PRO Operating Manual page 160

8
Close the guide (F-B2) .
2
If you are using the Staple Finisher-A1, close the guide (F-B1).
When closing the guide, be careful not to get your fingers caught, as this may result in personal injury .
9
Turn the lower dial (F-B3) in the direction of the arrow (counterclockwise) .
If you are using the Staple Finisher-A1, turn the dial (F-B2).
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Clearing Paper Jams