An ink jet nozzle arrangement includes a nozzle chamber having an ink ejection port for the ejection of ink. An actuator is located in the nozzle chamber. The actuator includes a heater encased within an expansive layer such that, upon activation, the actuator is caused to bend towards the ink ejection...http://www.google.es/patents/US6227653?utm_source=gb-gplus-sharePatente US6227653 - Bend actuator direct ink supply ink jet printing mechanism
Bend actuator direct ink supply ink jet printing mechanism