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Ink jet nozzle having an actuator mechanism with a movable member controlled by two actuators

  • US 6,874,866 B2
  • Filed: 11/23/2002
  • Issued: 04/05/2005
  • Est. Priority Date: 07/15/1997
  • Status: Expired due to Fees
First Claim
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1. A nozzle arrangement comprisinga wafer substrate;

  • a drive circuitry layer that is positioned on the wafer substrate, the wafer substrate and the drive circuitry layer defining an ink inlet channel;

    nozzle chamber walls and a roof positioned on the substrate and defining a nozzle chamber into which the ink inlet channel opens;

    a shutter member that is movable reciprocally along a path of travel between an open position in which the nozzle chamber is in fluid communication with the ink inlet channel and, a closed position in which the shutter member closes the ink inlet channel; and

    at least two actuators that are connected to the shutter member to act on the shutter member, the actuators being configured so that the shutter member is under the influence of at least one of the actuators at substantially all points along the path of travel.

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