Fountain pen
A fountain pen is a writing tool that uses a metal nib to lay down water-based ink. Unlike old dip pens, it has an internal ink reservoir, so you don’t have to keep re-dipping it in ink. The ink travels from the reservoir through a feed to the nib and onto the paper, mostly thanks to gravity and capillary action. The nib’s shape and the ink flow determine how thick or thin the line looks.
How filling works: The pen’s reservoir can be filled in several ways. Some pens are filled with an eyedropper or syringe. Others have internal filling parts (like a piston) that suck ink into the reservoir. Many pens today use replaceable cartridges, and some can use a cartridge with a converter to draw ink from a bottle. Ink can be poured from bottles into the reservoir or drawn into the cartridge. Inks are usually water-based dyes; pigment inks exist but aren’t common in fountain pens because they can clog. Traditional iron gall inks from the old days aren’t ideal for modern fountain pens and can corrode parts if not cleaned properly.
Cartridges, converters, and bottles: Cartridges are convenient—just pop one in and you’re ready to write. Some pens use international (standard) cartridges, while others use proprietary ones from the brand. Converters fit where a cartridge goes and let you use bottled ink. Bottled ink gives you more color choices and can be cheaper in the long run, but it’s messier to refill.
Nibs and how they write: The nib is the part that touches the paper. Nibs are usually made of steel or gold and are tipped with a very hard material to resist wear. Nib sizes range from extra fine to broad, with many other shapes like italic or music nibs for special writing and drawing. In the past, some nibs were more flexible, offering playful line variation, but most modern pens use stiffer nibs for everyday writing. Proper technique and not pressing hard help keep nibs in good shape.
Feeding the ink: The nib and feed work together to deliver ink smoothly and to prevent leaks. The design of the feed and the way air moves back into the reservoir affect how steady the ink flow is. Some feeds use tiny channels and sometimes a fiber wick to help with ink flow. A well-made pen writes smoothly and uses ink efficiently; a poorly designed feed can gush or skip.
History in brief: People have long dreamed of a pen that doesn’t drip or require constant dipping. Leonardo da Vinci studied ink vessels and ink flow, and early ideas show up in Renaissance drawings. By the 17th century, pens with internal ink supplies appeared in Europe. Over the 18th and 19th centuries, makers developed reliable filling systems and better nibs. In the 20th century, piston fillers and other reliable mechanisms helped pens become common household items. The rise of plastic cartridges in the 1950s made refilling easier, and while ballpoints eventually took over casual writing, fountain pens remained popular for signing important documents, art, and everyday use for many enthusiasts.
Today and beyond: Fountain pens are often seen as a luxury or lifestyle item, as well as useful tools for those who value smooth writing, expressive line variation, or simply the joy of a crafted instrument. They’re collected, traded, and enjoyed for their design, ink colors, and the personal feel of writing with a pen that “writes with you.” In recent years, many people have rediscovered fountain pens, helping to keep the tradition alive alongside modern technology.
This page was last edited on 3 February 2026, at 01:08 (CET).