Patent ID: 8894183
Filing Date: 2014-11-25
Classification: B41J,Y10T

Abstract:
1. A process for producing a liquid ejection head comprising a recording element substrate having a principal surface provided with an ejection orifice for an ink and a support member having a plurality of flow paths for supplying the ink to the recording element substrate, the support member having a color separation wall and an outer wall, the recording element substrate having a width narrower than a width of the support member, a plane formed by subjecting a lower side of an outer lateral surface of the recording element substrate to parallel translation in a direction perpendicular to the principal surface having an intersection line with a top surface of the outer wall at a position distant from an inner edge of the top surface of the outer wall by a predetermined outward distance, the process comprising; an adhesive application step of applying an adhesive onto the top surfaces of the outer wall and the color separation wall in such a manner that a surface height of the adhesive at the intersection line is higher than a surface height of the adhesive at a position distant from an inner edge of the top surface of the color separation wall by the predetermined outward distance; and a recording element substrate adhesion step of bonding and fixing the recording element substrate to the support member with the adhesive.