Provided is a spray device of an inkjet printer, made up of a plurality of individual electrodes formed on an oxide layer SiO2 on a silicon substrate and having a predetermined portion wetted with an ink to generate bubbles in the ink with the remaining portion serving as an insulating layer; a nozzle...http://www.google.de/patents/US6364464?utm_source=gb-gplus-sharePatent US6364464 - Spray device for ink-jet printer and its spraying method
