Canon imageRunner 6020 Reference Manual Reference Manual page 443

6
Remove the seal, fixing the staples, by pulling it straight out.
7
Gently push the staple case back into the Finisher until the
green lever returns to its original position.
8
Make sure that the staple case is firmly secured, and close the
upper front cover of the Finisher.
CAUTION
When closing the cover, be careful not to get your fingers caught, as this
may result in personal injury.
Finisher-F1/Saddle Finisher-F2/Puncher Unit-B1
7
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