Brother MFC-3340CN Service Manual page 106

(2) Press each of the right and left latches to the rear ( ) and shift the corresponding top cover
stopper to the right ( ) and off the upper cover.
(3) While supporting the top cover, turn the top cover stoppers and take them off the top cover.
Lift the top cover and off the upper cover.
(4) Unhook the stopper springs from the upper cover and top cover stoppers.
Panel-main
harness
Lower cover
Upper cover
Front cover
Top cover
5-8
Top cover stopper
Stopper spring
Latch
Confidential