Brother HL 4150CDN - Manual (Page 21)

Printing Methods
15
1
Printing on envelopes
1
(For the recommended paper to use, see Type and size of paper on page 2.)
a Open the MP tray and lower it gently.
b Pull out the MP tray support and unfold the flap (1).
c
Lift up the support flap to prevent envelopes from sliding off the face-down output tray, or remove each
envelope as soon as it comes out of the machine.
1