Canon C9075 PRO Operating Manual page 190

6
Return the bracket on the staple case to its original position .
2
7
Return the staple case to its original position in the saddle stitcher unit .
When returning the staple case, always make sure to the staple case is inserted until the arrows are aligned as shown in the diagram.
8
Gently push the saddle stitcher unit back into the machine (F-C5) .
Always make sure to push the saddle stitcher unit in as far as it can go.
When returning the saddle stitcher unit to its original position, be careful not to get your fingers caught, as this may result
in personal injury .
2-102
Clearing Staple Jams