Patent ID: 6435664
Filing Date: 2002-08-20
Classification: B41J,B82Y,G06K,G11C,H04N

Abstract:
A nozzle arrangement for an ink jet printhead, the nozzle arrangement comprising a substrate; andan actuator that is arranged on the substrate for ejecting ink from a nozzle chamber of the nozzle arrangement, the actuator comprising at least one actuating member having an anchored portion that is anchored to the substrate and a working portion that is movable with respect to the substrate, the, or each, actuating member incorporating a material having a coefficient of thermal expansion so that when heated, the, or each, working portion is capable of expansion and consequent movement sufficient to perform work; and at least one heating device that is positioned in, and in contact with, the, or each respective, working portion to heat the, or each, working portion.