Brother DCP-J552DW Service Manual page 151

(18) As shown below, loosely tie the CR timing belt in a bundle on the head/carriage unit.
(19) Move the head/carriage unit to the left side until it meets the carriage rail notches.
(20) Press the right and left tabs of the leveler roller (LR) ASSY inwards and pull the ASSY towards
you to release it downwards from the head/carriage unit.
Head/carriage unit
CR timing belt
Upper cover
(21) Slightly lift the rear end of the head/carriage unit and detach it from the CR guide rail (through
the 2 notches). Next, detach the front end from the CR frame to completely remove the head/
carriage unit.
Note Do not touch the head nozzles (the printing ends) or ink supply ports (to which ink supply
tubes are connected) of the print head. Doing so will not only stain your hands with ink but also
damage the nozzles and supply ports. If you accidentally touch them, perform head cleaning.
CR timing belt
Upper cover
Left and right knobs of the
leveler roller ASSY
Upper cover
CR frame
3-34
CR frame
Head/carriage unit
(3_041)
Notches
CR guide rail
(3_042)
Confidential