Canon 3301B002 On-Screen Manual page 117

Loading Paper in the Rear Tray
If the envelopes are curled, hold the opposite corners and gently twist them in the
opposite direction.
If the corner of the envelope flap is folded, flatten it.
Use a pen to press the leading edge in the inserting direction flat and sharpen the
crease.
The figures above show a side view of the leading edge of the envelope.
Important
The envelopes may jam in the machine if they are not flat or the edges are not aligned. Make
sure that no curl or puff exceeds 0.1 inches / 3 mm.
2.
Load envelopes.
Open the Paper Support, raise it, then tip it back.
(1)
Open the Paper Output Tray gently, and open the Output Tray Extension.
(2)
Slide the Paper Guides (A) to open them and load the envelopes in the center of
(3)
the Rear Tray WITH THE ADDRESS SIDE FACING YOU.
The folded flap of the envelope will be faced down on the left side.
Up to 10 envelopes can be loaded at once.
Slide the Paper Guides (A) to align them with both sides of the envelopes.
(4)
Do not slide the Paper Guides too hard. The envelopes may not be fed properly.
(B) Rear side
(C) Address side
Page 117 of 997 pages