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Self-cleaning ink jet printer with oscillating septum and method of assembling the printer

  • US 6,168,256 B1
  • Filed: 12/29/1998
  • Issued: 01/02/2001
  • Est. Priority Date: 12/29/1998
  • Status: Expired due to Term
First Claim
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1. A self-cleaning printer, comprising:

  • (a) a print head having a surface thereon; and

    (b) an oscillatable structural member disposed opposite the surface for defining a gap therebetween sized to allow a flow of fluid in a first direction through the gap, said member accelerating the flow of fluid to induce a shearing force in the flow of fluid while the member oscillates, whereby the shearing force acts against the surface while the shearing force is induced in the flow of fluid and whereby the surface is cleaned while the shearing force acts against the surface.

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