Brother DCP-9010CN Service Manual page 296

(3) Release the two Hooks of the Lower document chute ASSY pressing the ADF sensor PCB
ASSY.
(4) Turn the Shutter part of the Actuator ADF cover to the direction shown in the figure below
and remove it.
ADF sensor PCB ASSY
Lower document chute ASSY
ADF sensor PCB ASSY
Fig. 5-54
Fig. 5-55
5-69
Hook
Lower document chute ASSY
Shutter part
Confidential