HP Color LaserJet 9500 Printer series - Manual (Page 102)

http://www.hp.com/support/lj9500
100 Chapter 5 – Using color and media Rev. 1.0
Labels (letter- or A4-size sheets) or
transparencies. Tray 1
only No
(Never
duplex) Long edge toward the
printer; top of page
toward the rear of the
printer; side to be
printed facing up.
Envelopes Tray 1
only No
(Never
duplex) Short edge toward
the printer (stamp
edge away from the
printer); side to be
printed facing up.
If the height of the
envelope is greater
than 191 mm
(7.5 inches), feed the
envelope with the flap edge toward the printer. Otherwise, feed the
envelope with the flap edge toward the rear of printer.
Media Tray Duplex Orientation