Patent ID: 6609782
Filing Date: 2003-08-26
Classification: B41J

Abstract:
A liquid jet recording head comprising:at least one recording element unit comprising a recording element substrate including a plurality of recording elements for ejecting a recording liquid, and a flexible film member having an opening in which said recording element substrate is assembled, and electrically connected to said recording element substrate for applying electrical energy to said recording element substrate for ejection of the recording liquid, said flexible film member including a plurality of electrode leads which are provided along edges of the opening of said flexible film member and are electrically connected to a plurality of electrode pads provided along edges of said recording element substrate; a support member on which said recording element substrate is fixedly held; and a support plate having an opening into which said recording element substrate is inserted, situated between said flexible film member of said recording element unit and said support member, and fixedly holding said flexible film member, wherein a first thermosetting resin agent, which retains elasticity even after being hardened, is filled into recesses formed around said recording element substrate within the opening of said flexible film member and the opening of said support plate, and electrical connection areas between said recording element substrate and said flexible film member are coated by a second thermosetting resin agent, which has a higher mechanical strength after being hardened than said first resin agent.