A head driving device has first MOS field effect transistors connected between a VDD power supply terminal and electrodes, and second MOS field effect transistors connected between a VSS power supply terminal and the electrodes. In the driving device, ink is ejected from each ink chamber due to the variation...http://www.google.de/patents/US6113209?utm_source=gb-gplus-sharePatent US6113209 - Driving device for electrostrictive ink-jet printer head having control circuit with switching elements for setting electrical potential ranges of power supply to electrodes of the printer head
