Brother MFC-8460N Service Manual page 263

<Installing Procedure>
(1) Secure the Laser unit with the six cup S M3x6 Taptite screws.
(2) Put the flat cable through the Core and Protective film.
(3) Install the flat cable. (Refer to
NOTE:
When connecting flat cable(s), do not insert them at an angle. After insertion, check that the
cables are not at an angle.
Taptite, cup B M3x6
(4) Install the Air duct into the Laser unit.
"HARNESS ROUTING" in Chapter
Laser unit
Fig. 6-29
Hook
Air duct
Fig. 6-30
Laser unit
4a
4b
Pin
Hook
6-18
5.)
Taptite, cup B M3x6
Core
Protective film
Hook
Confidential