HP Laserjet p1606dn - Manual (Page 52)

NOTE: Use the priority input slot for printing one envelope or other special media. Use the main-input
tray for printing multiple envelopes or other special media.
1. Before loading the media, slide the media guides outward to slightly wider than the media.
2. Place the media in the tray and adjust the media guides to the correct width.
40 Chapter 5 Paper and print media ENWW