Patent ID: 6919169
Filing Date: 2005-07-19
Classification: B41J,G03F

Abstract:
1. A method of producing a liquid ejection head including a solution guide member that is a protrusion member provided on a head substrate and has a tip end that is a sharp-pointed portion protruding from a liquid surface of a solution in which charged particles are dispersed and which flows on the head substrate, the solution guide member guiding the solution to the sharp-pointed portion such that the solution is ejected from the sharp-pointed portion by means of an electrostatic force, the method comprising: forming a photosensitive resin layer on the head substrate; molding a convex portion having the sharp-pointed portion on a surface of the formed photosensitive resin layer by pressing a mold member against the surface of the photosensitive resin layer; exposing one of a first region and a second region of the photosensitive resin layer by irradiation of light wherein the first region includes a region in which the convex portion has been molded and the second region includes a peripheral region surrounding the region of the molded convex portion; and developing the exposed photosensitive resin layer to produce the solution guide member provided on the head substrate.