Patent ID: 6971171

Claim:
A method for manufacturing an ink jet recording head comprising an exothermic resistor, an ink orifice provided in correspondence to the exothermic resistor, and a nozzle channel communicating with the ink orifice, with a movable member formed in the nozzle channel between the exothermic resistor and an ink inlet for supplying ink into the nozzle channel in such a configuration that a bubble generated in the ink in the nozzle channel by heat generated by the exothermic resistor is utilized to discharge the ink from the ink orifice, said method comprising the steps of: preparing a substrate provided with the exothermic resistor; applying a first resin on the substrate so as to provide a first mold shape for forming the nozzle channel and said the movable member; forming the first mold shape using the first resin; applying, on the substrate, a second resin over the first mold shape for forming the nozzle channel and the movable member; and removing the first mold shape.