Brother GTX-4 Instruction Manual page 185

Cleaning suction cap
(1) Wipe the rubber seal of the suction cap with one side of the tip portion of clean stick R in parallel with the seal.
<IMPORTANT>

Avoid touching the sponge of the suction cap on the white side. Otherwise, the sponge may be dismounted.

Never touch the tip end of clean stick R with your hand. If any sebaceous matter is attached to the wiper, it may result in a
printer malfunction.

The clean stick R used for cleaning the nozzle guard, wiper, and exhaust cap should be rinsed in the cleaning cup before
the next use. Be sure to use the clean stick R separately for color ink and white ink.
Clean stick R
(2) When an ink clot comes to the surface, pinch it with tweezers and remove it.
<IMPORTANT>

Be sure not to pinch the rubber seal. If it is damaged, its sealing property will be degraded, which in turn may lead to
non-ejection of ink-jet droplets from the print heads.
(3) Replace the clean stick R with a new one, rinse the cleaning cup, and clean the nozzle guard of the color side head.
<IMPORTANT>

Be sure to use the clean stick R separately for white ink and color ink.

The used clean stick R should be disposed of, and should not be reused.
Precautions to keep good printing quality/use printer over the long term
185
Rubber seal
Sponge (on the white side only)
X0053