Patent ID: 7905570
Filing Date: 2011-03-15
Classification: B41J

Abstract:
1. An inkjet head comprising: a flow passage unit having an ink flow passage formed therein, wherein ink flows within the ink flow passage; an actuator unit secured to the flow passage unit, wherein the actuator unit is configured to apply a discharge energy to the ink within the ink flow passage; a driver IC configured to supply a drive signal to the actuator unit; a plurality of plates extending from the flow passage unit; an adiabatic layer disposed on one of the plurality of plates, wherein the adiabatic layer has an opening formed therethrough, and the driver IC is disposed within the opening; and a cover member secured to the plurality of plates, wherein the cover member, the plurality of plates, and the flow passage unit define a closed space, and the driver IC is disposed within the closed space, wherein the driver IC opposes at least a portion of an inside surface of the one of the plurality of plates and is thermally coupled to the one of the plurality of plates, and an outside surface of the one of the plurality plates has a heat radiation property which is greater than a heat radiation property of the inside surface of the one of plurality of plates.