Invention Grant
US08091985B2 Printhead having ejection nozzles with displaceable fluid chambers 有权
具有具有可移动流体室的喷嘴的打印头

  • Patent Title: Printhead having ejection nozzles with displaceable fluid chambers
  • Patent Title (中): 具有具有可移动流体室的喷嘴的打印头
  • Application No.: US12980189
    Application Date: 2010-12-28
  • Publication No.: US08091985B2
    Publication Date: 2012-01-10
  • Inventor: Kia Silverbrook
  • Applicant: Kia Silverbrook
  • Applicant Address: AU Balmain, New South Wales
  • Assignee: Silverbrook Research Pty Ltd
  • Current Assignee: Silverbrook Research Pty Ltd
  • Current Assignee Address: AU Balmain, New South Wales
  • Main IPC: B41J2/14
  • IPC: B41J2/14
Printhead having ejection nozzles with displaceable fluid chambers
Abstract:
A printhead is provided having a plurality of ejection nozzles defined in an array along a substrate. Each nozzle has a wall portion bounding a respective fluid inlet defined in the substrate, a crown portion defining an ejection port, a skirt portion depending from the crown portion to form part of a peripheral wall of the nozzle, and an actuator. The crown and skirt portions are displaceable with respect to the wall portion to alter a volume of a fluid chamber defined by the wall, crown and skirt portions such that when the volume is altered, fluid is ejected from the ejection port. The crown portion defines a rim surrounding the ejection port so as to facilitate formation of a meniscus of the fluid. The actuator causes the displacement of the crown and skirt portions.
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