Envelopes 1. Open the paper support and raise the extension. 2. Lower the output tray, then slide out the extension. 3. Slide the left edge guide to the left. 4. Load up to 15 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). 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 in Mac OS X