Patent ID: 6988787

Claim:
A printhead chip for an inkjet printhead, the printhead chip comprising a substrate; and a plurality of nozzle arrangements that is positioned on the substrate, each nozzle arrangement comprising a nozzle chamber structure positioned on the substrate and that defines a nozzle chamber from which ink is to be ejected; an ink-ejecting mechanism operatively arranged with respect to the nozzle chamber structure, the ink-ejecting mechanism including at least one component displaceable within the nozzle chamber to eject ink from the nozzle chamber; an actuator that is positioned on the substrate and that has at least one portion that is configured to undergo rectilinear expansion or contraction when its temperature changes; and at least one mechanical interconnection that interconnect the at least one component and the actuator so that expansion or contraction of the at least one portion is transmitted to the at least one component resulting in displacement of the at least one component.