We recommend to do a tube cleaning once a week, it takes time, but it is necessary to reduce the risks of choking with pigment TiO2.
It takes 15-20 minutes to clean one tube. A lot of air bubbles and the maintenance solution pigments will be easily washed away.
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Do not leave GT-782 with the white ink inside. If you do not use GT-782 for about two weeks, execute tube cleaning and load maintenance solution inside GT-782 by initial head cleaning menu, and then exchange maintenance cartridge to cap cartridge (option).
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Do not use filter cartridge for capping; the inside of the needles and tubes may be dried up and clogged.
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How to execute Tube Cleaning :
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Confirm first that there is enough room in waste ink tank.
Fill the bottle with maintenance solution (500 ml, at least more than 250 ml per one Print Head), tighten the cap and set it in the hole of the maintenance cartridge
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Insert the tube of the Maintenance Cartridge to the bottom of the bottle
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Retrieve the white ink in the tubes, remove one white ink cartridge and insert maintenance cartridge
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Make sure that air-in cap is closed.
Select [ Maintenance ] > [ Tube Cleaning ] and one print head where maintenance cartridge is set. Press [ OK ] to start.
After 30 seconds, with the "beep beep" sound, the message is indicated on the control panel. Uncap (open) the air-in cap and press the OK button. The air goes into the tube and washes away the remaining white ink. It takes about 10 minutes to wash one tube.
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After washing with air bubbles, only air is put through the tube to remove the bubbles. Follow the control panel and insert the filter cartridge with the slot closed with the seal
and press OK button.
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After all print heads are finished, confirm that the tube cleaning is successfully done (check if the tube before/after the pre-filter is transparent like the photos below).
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Select "Maintenance" and "Initial Cleaning" to let the white ink in the tube. Do not select Load White, the white ink will not reach the print head.
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If you leave the printer unused, fill the Maintenance Solution in the tube by [ Maintenance ]/ [ Initial Cleaning ] menu.
Do not use [ Load White ] instead of [ Initial Cleaning], or white ink will not be loaded enough.
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