Brother DCP-J4110DW Service Manual page 225

(5) Remove the protective part.
(Rear)
Note: To prevent the ink remaining in the ink supply tubes from leaking from the ink supply
needle side, keep the head joint side at the same height as the ink supply needles in the ink refill
ASSY and perform steps (5) and (6).
(Front)
Protective part
Lower cover
3-98
(3_080_E)
Confidential