Brother MFC Series Service Manual page 154

(3) Turn the Document scanner unit right side up.
(4) Remove the Document scanner top cover.
(5) Remove the CIS roller holder F and CIS roller holder R.
Document scanner top cover
CIS roller holder R
Document
scanner FG wire
Document scanner motor harness
Assembling Note When attaching the CIS roller holder R, fit the projection into the lower
side of the CIS unit.
Document scanner bottom cover
CIS roller holder F
CIS unit
3-46
(Right)
(Front)
Projection
CIS unit
CIS roller holder R
Confidential
(3_057)
(3_058)