Canon IMAGERUNNER 2020 - Manual (Page 279)

Clearing Staple Jams 8-32
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8
Clearing Staple Jams
If a staple jam occurs, follow the procedure described below to remove the jammed
staples.
Finisher-U1 (Optional)
If the machine does not staple even though you have set the staple mode, staple
jams may have occurred in the optional Finisher-U1. Follow the procedure
described below to remove jammed staples.
1
Open the front cover of the finisher.
2
Pull out the staple case, holding the tab as illustrated below.