Do you consider it a printer if it's photos? A friend of mine owns a print shop that does very large scale advertising photos (like, building sized stuff). Should I inform his industry that they should stop referring to themselves as "printers" because they're not producing text?
I think of printers as devices which produce hard copy 2-dimensional images. Star Trek coined "replicators". I think it fits pretty well even if the current versions are only 1.x of a pretty big n. "Robots" better fits the advanced articulated milling machines.