Patent ID: 6471901
Filing Date: 2002-10-29
Classification: B29C,B29L,B41J,Y10T

Abstract:
A method for manufacturing an ink jet recording head provided with a recording elemental substrate having a discharge port group for discharging ink, an electric wiring substrate electrically connected with the recording elemental substrate, and a supporting member for holding and fixing the recording elemental substrate and the electrical wiring substrate, comprising the steps of:injecting thermohardening filler into a filler retaining portion communicating with a sealing area requiring sealing; filling the sealing area with the thermohardening filler injected into the filler retaining portion by heating the filler to flow; and hardening the filled thermohardening filler, wherein the sealing area is formed by the supporting member, the recording elemental substrate, and the electric wiring substrate, and wherein the filler retaining portion is a stepping portion of the recording elemental substrate and the supporting member for supporting the recording elemental substrate, and is a portion adjacent to a side face of the recording elemental substrate having no electrode terminals arranged therefor.