Canon Satera LBP-3920 User Manual page 33

4
While holding the lock release lever of the side paper guides,
slide the guides to the size mark for the loaded paper.
The side paper guides move together.
IMPORTANT
5
While holding the lock release lever of the rear paper guide,
slide the guide to the size mark for the loaded paper.
32
Cassette 1
Be sure to align the paper guides with the width of the paper. If the paper guides
are too loose or too tight, this may result in misfeeds or paper jams.
Cassette 1
Cassette 2, 3, and 4
Cassette 2, 3, and 4