An inkjet nozzle assembly includes 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, defining at least part of the moving portion of the roof, for ejecting ink through the nozzle opening. The thermal bend actuator comprises an upper first beam for connection to drive circuitry and a lower second beam mechanically cooperating with the first beam, such that when a current is passed through the first beam, the first beam expands relative to the second beam resulting in bending of the moving portion towards the floor of the nozzle chamber.