Nozzle Device With Expansive Chamber-Defining Layer

摘要

A nozzle device for an inkjet printhead includes a substrate assembly defining an ink supply; a chamber-defining layer defining a nozzle chamber in fluid communication with a nozzle opening and the ink supply; and an actuating arm coupled to the substrate assembly and terminating in a paddle separating the ink supply and nozzle chamber, the arm including a thermal bend portion proximal to the substrate assembly and configured to bend during actuation so that the paddle moves and causes ink within the nozzle chamber to be ejected out through the nozzle opening. A portion of the chamber-defining layer is supported by the thermal bend portion and the substrate assembly.