Electrode patterns for piezo-electronic ink jet printer

摘要

A piezo-electric printhead is formed from a first piezo-electric actuator (18) disposed parallel to a second piezo-electric actuator (20). The first and second piezo-electric actuators have a shared inner electrode (28) disposed between them, a first control electrode (30) disposed on an outside surface of the first piezo-electric actuator and a second control electrode (31) disposed on an outside surface of the second piezo-electric actuator. The actuators are formed from a block having a piezo-electric layer disposed on a ceramic base (4), in which the piezo-electric layer has two parallel, distinct electrode patterns embedded therein in the form of a metal paste.