Most fountain pens with self-contained ink reservoirs and cartridges are designed for writing purposes. But you can still learn how to draw with an ink pen, provided you choose the right pen and nib.
Reed pens were first introduced in ancient Egypt with a similar design to a quill pen. They were made from cut bamboo, which ensured they were flexible and easy to control because the design allowed artists to apply different strokes and edges.
Some artists even use paint brushes to draw objects with calligraphy ink, but it requires a lot of practice to perfect the art.