Canon TR4700 Series Online Manual page 67

3. 3. Slide right paper guide (B) to open both paper guides.
4. 4. Load the envelopes in the center of the front tray WITH THE PRINT SIDE FACING DOWN.
Fold flap of the envelope and load the envelope in portrait orientation with the address side facing down.
Insert the leading edge of envelopes until you hear a sound. Up to 5 envelopes can be loaded at once.
When you load envelopes, the registration screen of paper information is displayed on the LCD.
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