Patent ID: 6789319
Filing Date: 2004-09-14
Classification: B41J,Y10S,Y10T

Abstract:
A method of manufacturing an ink jet print head comprising the steps of:forming a fluid passage forming substrate including pressure generating chambers being trapezoidal in shape, which are formed by etching a silicon monocrystalline substrate by an anisotropical etching process, each of said pressure generating chambers having first walls, which are vertical to a surface of said silicon monocrystalline substrate and oriented in the orientation of said pressure generating chambers, and second walls which are slanted with respect to the surface of said silicon monocrystalline substrate, said second walls being formed at both ends of each of said pressure generating chambers; firmly fastening an elastic plate onto first opening-formed sides of said pressure generating chambers, and a pressure generating means for expanding and contracting said pressure generating chambers being mounted on a surface of said elastic plate; coating with an adhesive a surface of second opening-formed sides of said fluid passage forming substrate; pressing a covering member having nozzle openings each located at the end of each said pressure generating chambers against the surface of the second opening-formed sides of said fluid passage forming substrate, whereby part of said adhesive flows into each of said pressure generating chambers, to form and harden meniscuses of said adhesive in spaces defined by the second walls.