How do I load envelopes into the printer and what is the correct orientation?

Load envelopes in Tray 1 face up with the short, postage end leading into the printer; the same orientation applies for Tray 2. For best performance, load only 4 to 6 envelopes (5 mm) in Tray 1 and no more than 10 envelopes in Tray 2. In the print driver, select Envelope as the paper type on the Paper/Quality tab. (Pages 23–24)