A printing system is disclosed wherein ink is emitted from a nozzle as entrained in a jet of air. The ink is introduced onto an ink wall from an ink passageway and a fluid passageway has an outlet directing air at an angle onto this ink wall to cause ink to flow along the wall and form into ligaments...http://www.google.com/patents/US4146900?utm_source=gb-gplus-sharePatent US4146900 - Printing system
