Laser Unit - Brother mfc8440 Service Manual

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.
NOTE:
• After disconnecting flat cable(s), check that each cable is not damaged at its end or
short-circuited.
• When connecting flat cable(s), do not insert them at an angle. After insertion, check
that the cables are not at an angle.
(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
Hook
Filter
Fig. 4-113
Laser unit
Fig. 4-114
4-63
MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN
Air duct
Spongy
SERVICE MANUAL
Polygon motor harness
Taptite, cup S M3x8