Brother DCP-J4110DW Service Manual page 207

(4) Release the five hooks marked with on the head cover to remove it.
Note: When removing the head cover, do not touch the inclination adjuster ring.
Hooks
Head cover
Hooks
Head/carriage unit
Inclination adjuster ring
(3_060_1_E)
(5) Unlock the connector on the carriage PCB ASSY and disconnect the head flat cable.
Note: After disconnecting the head flat cable, check that it is not damaged at its end or short-
circuited. When connecting the head flat cable, do not insert it at an angle. After insertion,
check again that it is not at an angle and then lock the connector.
Head flat cable
Connector
Carriage PCB ASSY
Pull here to unlock.
Head flat cable
(3_061_E)
3-80
Confidential