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Method and apparatus for venting an ink container

  • US 6,074,050 A
  • Filed: 12/03/1997
  • Issued: 06/13/2000
  • Est. Priority Date: 12/03/1997
  • Status: Expired due to Term
First Claim
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1. An ink container for providing ink to an ink-jet printing system, the ink container comprising:

  • a pressure vessel having a non-operating state and an operating state, during the operating state the pressure vessel has an internal gauge pressure that is treater than atmospheric pressure exterior to the pressure vessel and is maintained within an operating range so that pressurized ink is provided to the printing system from the pressure vessel, during the non-operating state ink is not provided from the pressure vessel to the printing system; and

    a vent apparatus communicating between an inside surface of the pressure vessel and outside atmosphere, the vent apparatus including a venting mechanism providing continuous venting of the internal gauge pressure in both the operating and the non-operating states.

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