Inkjet nozzle having fluidic seal between ink ejection member and stationary member
View Patent ↗An inkjet nozzle is provided. The nozzle comprises: a nozzle chamber having an ink ejection aperture defined therein; a stationary member; and an ink ejection member for ejecting ink from the aperture. The ink ejection member is moveable relative to the stationary member. Further, the ink ejection member and the stationary member are configured such that a sealing meniscus is formed therebetween. The meniscus maintains a fluidic seal during ink ejection.
1. An inkjet nozzle comprising:
a nozzle chamber having an ink ejection aperture defined therein;
a stationary member; and
an ink ejection member for ejecting ink from said aperture, said ink ejection member being moveable relative to said stationary member,
wherein said ink ejection member and said stationary member are configured such that a sealing meniscus is formed therebetween, and said meniscus maintains a fluidic seal during ink ejection.
2. The inkjet nozzle of claim 1 , wherein said ink ejection member and said stationary member each comprise respective complementary sealing formations, said sealing formations cooperating to form said sealing meniscus therebetween and to maintain the fluidic seal during ink ejection.
3. The inkjet nozzle of claim 2 , wherein at least one sealing formation comprises a vertex and said meniscus pins against said vertex.
4. The inkjet nozzle of claim 2 , wherein each sealing formation comprises a respective vertex and said meniscus pins between said respective vertices.
5. An inkjet printhead comprising a plurality of nozzles, each nozzle comprising:
a nozzle chamber having an ink ejection aperture defined therein;
a stationary member; and
an ink ejection member for ejecting ink from said aperture, said ink ejection member being moveable relative to said stationary member,
wherein said ink ejection member and said stationary member are configured such that a sealing meniscus is formed therebetween, and said meniscus maintains a fluidic seal during ink ejection.