Canon 4496B008AA Advanced Manual page 34

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
Note
Do not load envelopes higher than the Load Limit Mark (D).
3.
Specify the settings with the printer driver.
Select Envelope in Commonly Used Settings on the Quick Setup sheet.
(1)
Select DL Env. or Comm. Env. #10 in the Envelope Size Setting window.
(2)
Select Landscape in Orientation.
(3)
Important
If you do not specify the envelope size or orientation properly, the address will be printed
upside down or will be turned to 90 degrees.
Note
If the print result is upside down, open the printer driver setup window, select Envelope in
Commonly Used Settings, then select the Rotate 180 degrees check box in Additional
Features.
For details on the printer driver settings, see Printing Documents .