Patent ID: 6540332
Filing Date: 2003-04-01
Classification: B41J,H04N

Abstract:
A printhead chip for an inkjet printhead, the printhead chip comprisinga substrate; and a plurality of nozzle arrangements positioned on the substrate, each nozzle arrangement comprising a nozzle chamber structure that defines a nozzle chamber in which ink is received; an ink-ejecting member that is positioned in the nozzle chamber and is displaceable in the nozzle chamber to eject ink from the nozzle chamber; at least one actuator that is positioned on the substrate, the, or each, actuator having a working portion that is displaceable with respect to the substrate when the actuator receives a driving signal; a sealing structure that is positioned on the substrate and is interposed between the, or each, actuator and the ink-ejecting member to inhibit a passage of ink between the ink-ejecting member and the actuator; and a motion transmitting structure that bridges the sealing structure, the motion transmitting structure interconnecting the working portion of the actuator and the ink-ejecting member so that displacement of the working portion relative to the substrate is transmitted to the ink-ejecting member.