Brother MFC-J450DW Basic User's Manual page 28

Chapter 2
b
Put envelopes in the paper tray with the
address side down. If the envelope flaps
are on the long edge, load the
envelopes with the flap on the left, as
shown in the illustration. Gently press
and slide the paper width guides (1) and
paper length guide (2) to fit the size of
the envelopes.
14
If you have problems printing on
envelopes with the flap on the short edge,
try the following:
a
Open the envelope flap.
b
Put the envelope into the paper tray with
the address side down and the flap
positioned as shown in the illustration.
1
2
c
Select Reverse Print (Windows
Reverse page orientation (Macintosh)
in the printer driver's dialog box, and
then adjust the size and margin in your
application.
For more information, see Software and
Network User's Guide: Reverse Print
(Windows
(Macintosh).
®
) or Reverse Print
2
®
) or