The liquid droplet discharge head comprises: a liquid chamber flow channel which is filled with a liquid including an electrolytic liquid; a supply flow channel which branches from the liquid chamber flow channel; a pressure chamber which is connected to the supply flow channel and filled with the liquid...http://www.google.de/patents/US7328982?utm_source=gb-gplus-sharePatent US7328982 - Liquid droplet discharge head, liquid droplet discharge device, and image forming apparatus
