How does a pen absorb ink?

The method of absorbing ink with a pen is as follows:

1. Remove the pen tube: unscrew the cap of the removed pen tube.

2. Prepare to draw ink: drain the unscrewed pen and ink tube, which can be used to draw ink.

3. Ink pumping and filling: put the ink tube into the pen water bottle, pull up the ink suction switch of the ink tube, and suck the ink into the tube.

4. Restore the original state: after the ink tube is filled with ink, put it back in the tube and screw on the pen cover. After the installation is restored, you can use to write.

According to different types of pens, some pens absorb ink by pressing, some by pushing and pulling, and some by rotating. Just follow the corresponding operation steps.