Brother Copier/Printer MFC-9970CDW - Manual (Page 101)

Routine maintenance
85
A
h
Make sure the green lock lever (1) is in
the release position as shown in the
illustration.
i
Match the guide ends (2) of the drum
unit to the c marks (1) on both sides of
the machine, then gently slide the drum
unit into the machine until it stops at the
green lock lever.
j
Turn the green lock lever (1) clockwise
to the lock position.
k
Push the drum unit in until it stops.
l
Close the front cover of the machine.
1
1
2
1