Laser Unit - Brother MFC8420 Service Manual

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY
3.21

Laser Unit

(1) Remove the filter, and then remove the cup S M3x8 Taptite screw and the air duct.
Taptite, cup S M3x8
Hook
(2) Disconnect the LD harness 5P from the laser unit.
(3) Disconnect the polygon motor harness and remove the spongy from the laser unit.
(4) Remove the six cup S M3x8 Taptite screws, and then remove the laser unit.
LD harness 5P
Taptite, cup S
M3x8
Filter
Fig. 4-111
Laser unit
Fig. 4-112
Hook
Air duct
Spongy
4-62
Polygon motor harness
Taptite, cup S M3x8