Envelopes 1. Open the paper support and output tray, then slide out the extensions. 2. Flip the feeder guard forward. 3. Slide the left edge guide to the left. 4. Load up to 10 envelopes at a time, flap edge left, printable side up, against the right edge guide. Note: For best results, press each envelope flat before loading, or load one envelope at a time. 5. Slide the left edge guide against the envelopes (but not too tightly). 6. Flip the feeder guard back. 7. Set the paper thickness lever to the H position. Select the following settings when printing on envelopes: • Envelope as the paper Type or Media Type setting • The correct envelope size as the Size or Paper Size setting • Landscape as the Orientation setting For instructions on selecting these settings, see: • Printing in Windows • Printing with Macintosh OS X