Brother DCP-L8400CDN Service Manual page 234

(12) Remove the eight Hooks and lift the Document scanner unit from the Main body.
(13) Pull out the First side CIS flat cable from the Flat core of the Main body as lifting the
Document scanner unit.
First side CIS flat cable
Hook
Flat core
Document
scanner unit
(14) Remove the two Taptite bind B M4x12 screws from the ADF unit.
Document scanner unit
Hook
Hook
Main body
Fig. 3-69
Fig. 3-70
ADF unit
3-70
Hook
Hook
Document
scanner unit
Hook
Main body
Taptite bind B M4x12
Confidential