Brother DCP-L8400CDN Service Manual page 488

(12) Release the Hooks 1 to 7 in numerical order. Move the Side cover R in the direction of the
arrow 12a and release the other Hooks and remove Side cover R from the Main body.
Main body
<Front side>
* Inside of Side cover R
Hook
<Back side>
Hook
Hook
12b
Hook
Hook 1
Hook 2
Hook 3
Fig. 7-55
Hook
Hook
Fig. 7-56
Hook
12a
Hook 5
Hook 4
Hook
7-31
Hook
Hook 7
Hook 6
Side cover R
<Front side>
Hook
Side cover R
Hook
Hook
Confidential