Patent ID: 7581816
Filing Date: 2009-09-01
Classification: B41J,B82Y,G06F,G06K,G11C,H04N

Abstract:
1. A nozzle arrangement for an inkjet printhead, the nozzle arrangement comprising: a substrate assembly defining an ink inlet channel; a nozzle chamber structure defining a nozzle chamber in fluid communication with the ink inlet channel, the nozzle chamber structure comprising a roof defining an ink ejection port in fluid communication with the nozzle chamber; a pivotal wall which is pivotally mounted with respect to the nozzle chamber structure; a paddle fast with the wall in a cantilever manner and extending into the nozzle chamber; an anchor extending from the substrate assembly at a location external the nozzle chamber; and a thermal expansion actuator forming a bridge between the anchor and the pivotal wall which, upon actuation, expands to pivot the wall so that the paddle ejects ink in the nozzle chamber out through the ink ejection port.