Nozzle Arrangement With Expandable Actuator

摘要

A nozzle arrangement is provided for an inkjet printhead. The nozzle arrangement includes a substrate assembly. A nozzle extends from the substrate assembly and defines an ink ejection portal through which ink supplied therein can be ejected. An expandable actuator is located within the nozzle and can expand to eject ink within the nozzle out through the ink ejection portal. Preferably, the expandable actuator includes a stacked capacitor device which, in turn, includes a stack of capacitive plates between which is sandwiched a compressible material.