Brother HL-L9300CDW Service Manual page 236

(8) Release the Hook and remove the Registration/pinch roller gear bushing from the Main body.
(9) Release the wiring of the Registration/pinch roller gear bushing.
Hook
Registration/pinch roller gear bushing
<Left side>
(10) Slide the MP drive shaft as shown in the figure.
(11) Remove the two Taptite bind B M3x10 screws from the MP upper cover ASSY.
Release the two Hooks and remove the MP upper cover ASSY from the MP lower chute
ASSY.
MP upper
cover ASSY
Taptite bind B M3x10
Hook
Fig. 3-123
MP drive shaft
10
11
Fig. 3-124
3-95
Hook
Taptite bind B M3x10
MP lower chute ASSY
<Front side>
Main body
MP upper cover ASSY
Confidential