Loading Envelopes

You can print on plain paper envelopes in this size: No. 10 (4.1 × 9.5 inches [105 × 241 mm]).
  1. Extend the output tray and open the paper stopper.

  2. Pull up the rear MP tray.

  3. Flip the feeder guard forward, then slide the edge guides outward.

  4. Insert envelopes, short edge first and with the flap facing down, in the center of the tray.

  5. Slide the edge guides against the envelopes, but not too tightly.

Always follow these paper loading guidelines:
Related tasks
Loading Paper in the Cassette
Loading Paper in the Rear MP (Multipurpose) Tray
Related references
Paper Loading Capacity