How Do Fountain Pens Work?
The fountain pen's nib (or tip) has a system of three small channels for the ink and one larger channel for air. As you write, air flows upward through the feed (a plastic tube) causing the ink to flow out and create a continuous line of ink. The fountain pen also consists of a reservoir (ink concealed in the handle) and a collector (grooves just beneath the nib).
Fountain pens are classy and make for great employee gifts. If you understand the basic gist of how pens are made, then you have a better understanding of how fountain pens work.