Brother DCP-L8400CDN Basic User's Manual page 120

d
Pull out the jammed paper slowly.
e
Make sure the blue lock lever (1) is in
the release position as shown in the
illustration.
1
112
f
Gently slide the drum unit into the
machine until it stops at the blue lock
lever.
1
2
g
Turn the blue lock lever (1) clockwise to
the lock position.
1