Piezographic inks are the basis of all my work. The goal of black and white prints, rendered with digital equipment, but true to historical silver print techniques, peizographic inks replace all color ink cartridges with carbon-based grey-shaded inks that range from light-light-grey to black.
More will be written on this topic in the future, but for now, I encourage you to read more about Jon Cone and Piezography. You can order piezo-inks at InkJetMall.