Patent ID: 8562109
Filing Date: 2013-10-22
Classification: B41J

Abstract:
1. A liquid ejection head comprising: a recording element substrate including an ejection orifice forming member provided with an ejection orifice for ejecting a liquid, and a substrate provided with a surface on which an energy-generating element that generates energy utilized for ejecting the liquid is formed, the recording element substrate having a first edge along which a plurality of terminals electrically connected to the energy-generating element are formed, and a second edge along which no terminal is formed; an electrical wiring substrate including a plurality of wirings connected to the plurality of terminals formed on the surface along the first edge; and a support member including a substrate support portion supporting the recording element substrate through an adhesive, a groove portion formed along the substrate support portion and an electrical wiring support portion supporting the electrical wiring substrate, wherein a sealing material is applied to a connection portion between the terminals and the wirings, and wherein the sealing material is applied to at least a portion of a bottom surface of the groove portion formed along the second edge, and at least a part of a side wall of the recording element substrate corresponding to the second edge is exposed without being covered with the sealing material.