INKJET NOZZLE ASSEMBLY HAVING THERMAL BEND ACTUATOR WITH AN ACTIVE BEAM DEFINING SUBSTANTIAL PART OF NOZZLE CHAMBER ROOF

摘要

An inkjet nozzle assembly is provided. The assembly comprises a nozzle chamber comprising a floor and a roof. The roof has a nozzle opening defined therein, and a moving portion moveable towards the floor. The assembly further comprises a thermal bend actuator, having a plurality of cantilever beams, for ejecting ink through the nozzle opening. A first active beam of the actuator defines at least 30% of a total area of the roof.