Ink cartridge and method of regulating fluid flow

Ink cartridge and method of regulating fluid flow

  • CN 1,733,489 B
  • Filed: 02/14/2003
  • Issued: 01/04/2012
  • Est. Priority Date: 09/12/2002
  • Status: Active Grant
First Claim
Patent Images

1. print cartridge comprises:

  • Ink storage chamber,Through the liquid ink supply port that is communicated with of flow path of ink and this ink storage chamber andThe negative pressure of optionally blocking said flow path of ink and opening because of consumption of ink produces mechanism, and said ink negative pressure produces mechanism and comprises;

    Elastic component with first and second surfaces;

    The flow channel that the first of said flow path of ink, said first have opening portion and be communicated with said ink supply port, the first surface of this elastic component can contact with this opening portion and separate;

    The second portion of said flow path of ink, said second portion has connected component, and said connected component is towards the first surface of this elastic component, and is communicated with said ink storage chamber;

    WithSpace segment, said space segment be towards the second surface of said elastic component, and be communicated with said ink supply port through the communication passage that links to each other with said flow channel, wherein;

    Said space segment is the enclosure space that only is communicated with said communication passage;

    When the negative pressure in said ink supply port acted on said space segment, said elastic component separated from said opening portion, made ink be fed to said ink supply port through said flow path of ink from said ink storage chamber;

    AndSaid elastic component does not have through hole in the zone that contacts with said opening portion.

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