Canon BJC-2100 Series User Manual page 63

I Envelopes
• To assure crisp, clear printing, do not use envelopes with textured or coated
surfaces. To avoid paper feed problems, do not use double-flap envelopes or
envelopes with exposed adhesive seals.
• Prepare the envelopes.
1
Press down on the corners and the middle of the envelopes to expel air and
eliminate warp and curl.
2
If the envelopes are still warped, hold the envelopes at diagonally opposed
corners and bend lightly. Confirm that the flaps are straight.
Printing on Special Media Types
Paper Handling 63