Inkjet nozzle arrangement having ink passivation
AssigneeSilverbrook Research Pty Ltd
InventorKia Silverbrook
Life of this patent
Estimating the term…
Abstract
An inkjet nozzle arrangement is provided having a substrate, an ink passivation layer on the substrate, a nozzle chamber on the passivation layer, and an arm anchored to the passivation layer. The substrate has an ink passage and incorporates drive circuitry. The passivation layer has a first aperture in fluid communication with the ink passage. The is in fluid communication with the first aperture and has second and third apertures. The arm extends into the nozzle chamber through the second aperture and is connected to the drive circuitry. The arm is displaced relative to the nozzle chamber upon receipt of a signal from the drive circuitry thereby causing ejection of ink from the third aperture of the nozzle chamber.
Claims7
An inkjet nozzle arrangement comprising:
- a substrate having an ink passage and incorporating drive circuitry;
- an ink passivation layer on the substrate having a first aperture in fluid communication with the ink passage;
- a nozzle chamber on the passivation layer in fluid communication with the first aperture, the nozzle chamber having second and third apertures;
- and
- an arm anchored to the passivation layer so as to extend into the nozzle chamber through the second aperture, the arm being connected to the drive circuitry and configured to be displaced relative to the nozzle chamber upon receipt of a signal from the drive circuitry thereby causing ejection of ink from the third aperture of the nozzle chamber.
Dependencies are inferred from the claim text.