Brother DCP-8250DN Basic User's Manual page 22

Chapter 2
c
Put paper in the MP tray and make sure:
 The paper stays under the maximum
paper mark (1).
 The side to be printed on must be
face up with the leading edge (top of
the paper) in first.
 The paper guides must gently touch
the sides of the paper so it will feed
correctly.
1
14
d
Lift up the support flap to prevent paper
from sliding off the face-down output
tray, or remove each page as soon as it
comes out of the machine.