Brother GTX-4 Instruction Manual page 277

(22) Remove every cap from each tube, and connect them to the print head.
<IMPORTANT>

To prevent the tubes from being entangled with each other, connect the innermost tube to the print head first, and make the
connection of the rest of the tubes.

Be sure to connect each tube with its correct position.
(23) Tighten the nut firmly until it stops so that each tube is fixed to the print head.
<IMPORTANT>

Be sure not to tighten the nut for part (a) by mistake.
M4
(24) Close the front cover, turn on the power.
(25) From the menu, select [Maintenance] > [Install Ink after Replacing Head] > [White], and press
Perform the work operation by following the on-screen instructions.
<TIPS>

When the white ink pouch runs low on its remaining volume of white ink, the Install Ink after Replacing Head function can
no longer get started. Furthermore, there may be cases where the pouch needs to be replaced with a new one during the
installation process of white ink. If the remaining volume is 400 g (14.1 oz) or less, prepare a new white ink pouch, follow
the instructions on the screen to replace the pouch, and activate the mode again.
(26) Take out the capping cartridge from the printer.
<TIPS>

The bottom of the cartridge may be soiled with ink.
4
3
C3
Y2 2
Bk1
1
Capping cartridge
(a)
Nut
277
Troubleshooting
Tube
Print head
W12 W34
X0138
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X0039