: how do pens work? Like, how does the ink get out and how does the ink stay in the pen and not slosh around in it?

Question

: how do pens work? Like, how does the ink get out and how does the ink stay in the pen and not slosh around in it?

In: Engineering

Answer 1

There’s a small metal ball(smaller than a BB for a BB gun) on the writing end of the ink cartridge, it holds the ink in and when drug against a surface the ball rolls, grabbing ink as it does and laying it down on said surface.