Brother DCP-L8400CDN Service Manual page 476

Note:
As the Spacer tends to come off, be careful not to lose it.
Spacer
High-voltage power
supply PCB ASSY
Spacer
(13) Open the Pull arm L and Pull arm R and release the Hooks from the joint of the Document
scanner unit.
Hook
Pull arm L
Fig. 7-31
Hook
Fig. 7-32
7-19
Spacer
Document scanner unit
Pull arm R
Spacer
<Right side>
Confidential