a micro - electromechanical nozzle arrangement for a printhead integrated circuit featuring a nozzle chamber capped by an ink ejection port includes a paddle located in the nozzle chamber below the ink ejection port ; an actuator arm having a fixed end fixed to the substrate and a working end displaceable towards and away from the substrate ; and a motion transmitting structure interconnecting the working end of the actuator arm and a proximal end of the paddle . the actuator arm and the paddle are formed of the same material .