Brother DCP-J552DW Service Manual page 163

(6) Turn the CIS unit 90 degrees clockwise, pull it slightly towards you, pull out the two bosses
from the CIS carriage, and remove the unit upwards.
(7) Unplug the CIS flat cable from the CIS unit.
(8) Peel off the double-sided tape of the reverse side of the CIS flat cable from the CIS carriage.
(9) Remove the CIS flat cable from the document scanner bottom cover.
Note Once removed, the double-sided tape will become unusable and will have to be replaced by a
new tape.
CIS unit
CIS flat cable
Document scanner bottom cover
(Right)
Double-sided tape
(Front)
CIS carriage
(3_059)
3-46
Confidential