How does a pen absorb ink? How does a pen absorb ink?

1. First, turn the rotary rod of the suction piston at the end of the pen as far as possible.

2. Carefully put the nib into the ink, and the nib must be completely submerged in water to avoid inhaling air.

3. Gently squeeze the straw by hand until you see that the straw is full.

4. After sucking the ink, put the pen tip down and gently squeeze it to release six to eight drops of ink.

5. Screw the pen up and tighten the piston rod, so that the remaining ink of the pen can flow back to the ink storage tank, and the excess water can be sucked off with a paper towel.