Canon Color imageRunner C3220 Reference Manual page 501

2
Grip the saddle stitcher unit by its handle, and pull it out of
the finisher until it stops.
3
Pull the stapler unit of the saddle stitcher unit towards you,
then push it up.
4
Pull out the staple cartridge containing the jammed staples,
holding it by its left and right sides.
Saddle Stitcher Unit
Stapler Unit of the
Saddle Stitcher Unit
Clearing Staple Jams
8
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