Patent ID: 7784910
Filing Date: 2010-08-31
Classification: B41J,Y10T

Abstract:
1. A nozzle arrangement for an inkjet printhead, the nozzle arrangement comprising: a substrate assembly defining an ink supply channel; a nozzle chamber structure extending from the substrate assembly, and defining a nozzle chamber in fluid communication with the ink supply channel and a nozzle rim defining an ink ejection port; and a thermal actuator mechanism anchored to the substrate assembly, and having an ink ejection paddle extending across the nozzle chamber between the ink supply channel and the nozzle rim, wherein the thermal actuator mechanism includes a post anchored to the substrate assembly with the ink ejection paddle pivotally mounted to the post, and the thermal actuator mechanism further comprises two conductive layers disposed on opposite sides of the ink ejection paddle in the vicinity of the post, the two conductive layers terminating before the nozzle chamber.