Dip Pens are certainly not cartridge fed like fineliners and brush pens. Rather, you dip them into a bottle of ink and re-dip once the ink runs out. This technique is a lot more akin to the kinds of pen and ink drawing accomplished by artists in the previous. https://inkdrawingforbeginners65431.theisblog.com/35905550/the-how-to-draw-with-ink-pens-diaries