Canon PIXMA G7040 Online Manual page 101

3. Open the feed slot cover (C).
4. Slide right paper guide (D) to open both paper guides.
5. Load envelopes in portrait orientation WITH PRINT SIDE FACING UP.
Up to 10 envelopes can be loaded at once.
Fold flap of the envelope and load the envelope in portrait orientation with the address side facing up.
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