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Printhead integrated circuit with actuators proximate exterior surface

  • US 8,366,243 B2
  • Filed: 07/12/2009
  • Issued: 02/05/2013
  • Est. Priority Date: 07/15/1997
  • Status: Expired due to Fees
First Claim
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1. An inkjet printhead comprising:

  • an array of droplet ejectors supported on a printhead integrated circuit (IC), each of the droplet ejectors having a respective nozzle aperture and a thermal bend actuator for ejecting a droplet of ink through the nozzle aperture;

    whereinthe thermal bend actuator in each of the droplet ejectors is a cantilever beam configured to generate a pressure pulse in a quantity of ink adjacent the respective nozzle aperture, wherein each thermal bend actuator comprises a metal alloy beam having a serpentine configuration.

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