Brother MFC-J2320 Service Manual page 167

<Duplex scanning models only>
(4) Release the Boss of the ADF cover, and remove the Document pressure bar.
(5) Remove the Earth spring.
Document pressure bar
Boss
(6) Release and remove the two Springs through the cutout of the Hook.
(7) Hold down the Hook, and move the Roller axis in the direction of the arrow to
remove it.
Springs
Earth
spring
Fig. 3-20
Roller axis
Hook
Fig. 3-21
3-37
ADF cover
Confidential