Brother MFC-9130CW Basic User's Manual page 38

Chapter 2
Printing on thick paper, labels,
envelopes and glossy paper from the
manual feed slot
When the back cover (face-up output tray) is
pulled down, the machine has a straight
paper path from the manual feed slot through
to the back of the machine. Use this paper
feed and output method for printing on thick
paper, labels, envelopes or glossy paper.
a
Open the back cover (face-up output
tray).
b
(For printing envelopes only)
Pull down the two gray levers, one on
the left side and one on the right side, as
shown in the illustration.
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c
Open the manual feed slot cover.
2
d
Use both hands to slide the manual feed
slot paper guides to the width of the
paper that you are going to use.