Brother GTX-4 Instruction Manual page 204

(6) Moisten a clean stick R with the cleaning solution.
<IMPORTANT>

If you use an already-used clean stick R, do not use it for other purposes than cleaning the carriage plate.

Do not use other fluids (water, etc.), because they may damage the print heads.

Do not return the cleaning solution which has been put in the cleaning cup to the cleaning solution bottle.
<NOTE>

For a proper work operation, be sure to wear the printer-provided gloves.
Cleaning solution
(7) With the clean stick R, wipe away the accumulated ink on the carriage plate of the left-side of the print head.
<IMPORTANT>

Be sure not to touch the nozzle surface.
<TIPS>

Manually move the carriage to such a position that you can perform the cleaning with ease.
Clean stick R
Contaminated with ink
(8) Clean the carriage plate on the left side of the other print head in the same manner.
<IMPORTANT>

The used clean stick R should be disposed of, and should not be reused.
(9) Close the front cover.
(10) Turn on the power.
<NOTE>

Dispose of any waste resulting from the cleaning in accordance with applicable laws and ordinances.
<TIPS>

Then, a head cleaning will be performed to prevent any ink from drying up.

Because the cleaning cup will be reused, rinse it in clean cleaning solution and store it in a safe place.
Precautions to keep good printing quality/use printer over the long term
Cleaning cup
Carriage plate
204
Clean stick R
Cleaning cup
X0051
X0147