Patent ID: 6447984
Filing Date: 2002-09-10
Classification: B41J

Abstract:
A method for manufacturing a liquid discharge head comprising the following steps of:providing a head main body having liquid flow paths, and an aperture surface having flow path openings communicating with the liquid flow paths; providing a discharge port plate having extrusions respectively on circumferences of inside openings communicating respectively with discharge ports and having grooves respectively on circumferences of the extrusions, the extrusions being on an inner face on a side opposite a discharge port surface provided with the discharge ports for discharging liquid, and a base having a joint surface in contact with the discharge port surface, the discharge port plate being arranged such that the discharge port surface and the joint surface are formed integrally to be in contact; bonding the aperture surface and the inner face to fit the extrusions into the flow path openings by pressing the head main body and the base toward each other with the discharge port plate between them; and separating the base from other members.