Brother HL-3450CN Service Manual page 255

CHAPTER 7 DISASSEMBLY & RE-ASSEMBLY
(4) Remove the screws BT4x8 (4 pcs.) from the front inner cover.
(5) Unhook the two hooks by slightly lifting up the front inner cover and remove the hinge
from the front cover unit 3.
(6) Disconnect the connectors (4 pcs.) from the front cover unit 3.
Unhook the hook from
the shaft.
(7) Remove the C rings (2 pcs.) to remove the shafts from the front cover hinge plates at left
and right sides of the frame.
(8) Gently lower the front cover to release the hinge spring tension.
Hinge
Front cover hinge plate
Fig. 7-72
Shaft
Eccentric cam
C ring
Fig. 7-73
7-48
Front inner cover
Cam