Canon Satera LBP-3910 User Manual page 49

4
Spread the paper guides a little wider than the actual paper
width.
5
Before loading envelopes, align them as shown in the
following figures.
● Place the stack of envelopes on a flat surface, flatten them to release
any remaining air, and be sure that the edges are pressed tightly.
48
CAUTION
When loading paper, take care not to cut your hands with the edges of the
paper.