Canon MG7100 series Online Manual page 130

3. Open the paper output tray.
(1) Holding both sides of the paper output tray, gently open it.
The output tray extension opens automatically when the paper output tray is
opened.
(2) Extend the paper output support.
Note
After loading envelopes
Select the size and type of the loaded envelopes on the print settings screen of the
printer driver.
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