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Printhead micro-electromechanical nozzle arrangement with a motion-transmitting structure

  • US 7,641,314 B2
  • Filed: 01/16/2008
  • Issued: 01/05/2010
  • Est. Priority Date: 07/15/1997
  • Status: Expired due to Fees
First Claim
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1. A micro-electromechanical nozzle arrangement for a printhead integrated circuit, said arrangement having a nozzle chamber defined in a substrate with a roof that defines an ink ejection port, the nozzle arrangement comprising:

  • a paddle located inside the chamber below the ink ejection port, said paddle operatively ejecting ink from the chamber through the port;

    an actuator arm having a fixed end fixed to the substrate and a working end that is displaceable towards and away from the substrate upon receipt of a drive signal in the form of a current pulse emanating from a drive circuitry layer on the substrate; and

    a motion transmitting structure interconnecting the working end of the actuator arm and a proximal end of the paddle.

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