Brother GTX-4 Service Manual page 244

(9) Detach the joint of the cleaning solution tube and bind the tube with a rubber band or clip so that the cleaning
solution may not spill out.
(10) Detach the waste ink tube located at the bottom of the maintenance unit from the Y joint.
(11) Disconnect the three connectors (CN7 (8p), CN15 (8p), CN19 (5p)) connected to the maintenance circuit board
from the main unit.
11
Disassembly / Replacement / Adjustment
10
6-53