Patent ID: 7156504
Filing Date: 2007-01-02
Classification: B41J

Abstract:
1. A liquid ejection head, comprising: a metallic cavity unit, formed with liquid flow passages respectively continued from a common liquid reservoir to nozzle orifices via pressure chambers; an actuator unit, in which a plurality of piezoelectric elements are supported on a fixation plate in a cantilevered manner; a resin casing, formed with a first face onto which the cavity unit is bonded, the casing having an actuator chamber which accommodates the actuator unit therein such that free ends of the piezoelectric elements are abutted onto the cavity unit; and a metallic reinforcement member, integrally molded with the casing such that at least a part thereof is buried in the casing at the vicinity of the first face, wherein the reinforcement member extends in the casing so as to surround the actuator chamber.