Canon S450 User Manual page 85

I Envelopes
1 Make sure the printer is turned on and the paper thickness lever is set to
the Down position.
• To avoid poor print results, do not attempt to print on envelopes with
Note
embossed or treated surfaces.
• To avoid misfeeds and jams, do not use envelopes with overlapping flaps
or pressure seals.
Paper thickness lever
Printing on Special Media Types
Paper Handling 85