Lanier 5580 Operator's Manual page 211

9
Tilt the Stapler Unit down and push it back into the Finisher.
10
Turn the blue locking lever 90 degrees to the right to lock the
Stapler Unit in place.
11
Close the Upper Finisher Door.
12
Once the Finisher Door is closed, the machine automatically feeds
a sheet of paper and makes a series of staples in the sheet to test the
Stapler. Check to see there are staples present on this sheet and
discard it.
Service and Supplies
Staple Cartridge for Saddle Stitcher
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