"Buyers should remember: how to use the paint pen :
1: Before using, shake the pen body up and down several times to make the ink in the pen tube mix evenly.
2: Open the pen cap, stand it straight with the pen tip up, and press the pen tip with your hand for about 3-4 seconds to release the air in the pen tube (the new pen is in a completely sealed state, there is a large amount of air in the pen tube, and the excessive pressure will cause a large amount of ink to be ejected during use)
3: Press down the pen tip several times until the ink seeps out. Note that the pressed ink must be used up (ink desalinization) before pressing again to prevent too much ink from leaking out"
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