Brother GTX pro Instruction Manual page 283

Replacement procedures for print head on the white side (if you use a capping pouch)
<IMPORTANT>

When you replace a print head on the white side, you can minimize ink consumption by installing a capping pouch (optionally
available) in addition to a print head. Instead of the capping pouch, a white ink pouch at its ink depletion level before its expiry
date can also be used.
(1) From the menu, select [Maintenance] > [Head Replacement] > [White], and press
(2) Make available a capping pouch and select [Yes] in response to the instructions on screen.
<IMPORTANT>

Instead of the capping pouch, a white ink pouch at its ink depletion level before its expiry date can also be used.
<TIPS>

Perform the work operation by following the on-screen instructions.

Pressing
(3) Remove the white ink cartridge from the printer.
<CAUTION>

The bottom of the cartridge may be soiled with ink. Clean the printer on a regular basis.
(4) Open the cartridge's lid.
<IMPORTANT>

When opening the lid, be sure not to touch the portion (a). Otherwise, it could be damaged.

Place the entire cartridge on a flat surface, push the latches on the bottom surface of the cartridge downward and open the
lid.
Cartridge
(a)
causes the platen to start moving. Do not put anything around the platen.
White Ink Cartridge
W12
Lid
Latch
283
Troubleshooting
.
W34
Lid
X0333
X0042