Patent ID: 6382777
Filing Date: 2002-05-07
Classification: B41J

Abstract:
A liquid jet recording head comprising:a substrate member provided with discharge energy generating elements for generating ink discharge energy corresponding to a plurality of ink flow paths; a plurality of grooves corresponding to said plurality of ink flow paths; an orifice plate provided with ink discharge ports for discharging ink, each of said ports communicating with one end of one of said grooves; an ink liquid chamber that communicates with each of said grooves at the other end thereof for supplying ink to each of said grooves; an ink supply port for supplying ink to said ink liquid chamber, and a ceiling plate member integrally formed with said grooves, said orifice plate, said ink liquid chamber, and said ink supply port to which said substrate member is joined under pressure to form a plurality of ink discharge paths, wherein said ceiling plate member is structured with a first substrate comprising said grooves and said orifice plate, and a second substrate comprising a cover portion covering said grooves, said ink liquid chamber and said ink supply port, and said first substrate and said second substrate are joined by means of bicolor molding to be integrally molded, and said ceiling plate member is joined to said substrate member by pressing the cover portion of said second substrate with a pressing member.