This could be useful ... I know some inkjets won't work without original verification chips on cartridges. hmmmmm ... looks cool anyway ...
http://www.inkfactory.com/blog/3d-printing/inkfactory-com-makes-worlds-first-working-3d-printed-ink-cartridges
http://www.inkfactory.com/blog/3d-printing/inkfactory-com-makes-worlds-first-working-3d-printed-ink-cartridges