Brother GTX pro Instruction Manual page 195

(8) With the clean stick R, wipe away the ink mist on the carriage roller part.
(9) Move the carriage from side to side to rotate the roller part, and wipe all around the carriage roller.
Carriage
(10) Clean the carriage guide shaft and the three sides (upper, front, and lower sides across which the roller rolls) of
roller guide.
<TIPS>

Moisten a waste cloth (non-fuzzy cloth) with a small amount of alcohol, and use such cloth to wipe clean the internal
surface.

Do not use alcohol on parts other than the carriage guide shaft and the roller guide.
(11) Apply a proper amount of the grease (which is included with the printer) onto the carriage guide shaft.
<CAUTION>

When handling the grease, perform the work operation in such a manner that it will not get into your eyes or onto your skin.
Precautions to keep good printing quality/use printer over the long term
Roller guide
Carriage guide shaft
Carriage roller
Clean stick R
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X0448
Front cover
X0063