Inkjet nozzle assembly with a raised rim for pinning a meniscus of ink in a nozzle chamber

Abstract

A nozzle assembly is provided for an inkjet printhead. The nozzle assembly includes a substrate assembly defining an ink inlet aperture. A nozzle includes an endless wall portion extending from the substrate assembly and a moveable crown portion from which a skirt portion depends. The nozzle defines a nozzle chamber in fluid communication with the ink inlet aperture and a nozzle opening in fluid communication with the nozzle chamber. The nozzle opening is surrounded by a raised rim configured to pin a meniscus of ink in the nozzle chamber. An anchor extends from the substrate assembly. A thermal bend actuator connects between the anchor and a lever arm, in turn, connected to the nozzle. Upon actuation, the actuator moves the crown and skirt portions relative to the wall portion so that ink in the nozzle chamber is ejected out through the nozzle opening.

Dependencies are inferred from the claim text.