Brother DCP-L8400CDN Service Manual page 290

(5) Release the two Hooks A and release the two Hooks B.
(6) Release the four Hooks C and lift the Joint cover top in the direction of the arrow.
(7) Slide the Joint cover top from the four Hooks D and remove it from the Main body.
Hook D
Hook C
Hook A
(8) Release the Hook and remove the two Flat cores of the Modem flat cable from the Back
cover upper.
Flat core
Hook C
7
6
Main body
Hook A
Fig. 3-169
Modem flat cable
Hook
Fig. 3-170
3-126
Joint cover top
Hook B
Hook B
<Front side>
Back cover upper
Confidential