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Printhead integrated circuit with a solenoid piston

  • US 7,959,263 B2
  • Filed: 11/17/2009
  • Issued: 06/14/2011
  • Est. Priority Date: 07/15/1997
  • Status: Expired due to Fees
First Claim
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1. A printhead integrated circuit comprising:

  • a wafer substrate defining a nozzle outlet port;

    an electromagnetic piston mounted to the wafer substrate via torsion springs, said piston operatively forced towards the outlet port when activated; and

    a solenoid coil positioned on the wafer substrate about the piston to activate the piston when a current is passed through the coil.

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  • 3 Assignments
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