Patent ID: 7152952
Filing Date: 2006-12-26
Classification: B41J

Abstract:
1. A method of manufacturing an ink-jet head constructed by laminating a nozzle plate having a nozzle for discharging ink, a front end provided with a flow path for supplying the ink to the nozzle, and a reservoir for strengthening the front end, the method comprising the steps of: forming the nozzle plate having a nozzle positioning hole; forming the front end by positioning and laminating plural thin plates including a first thin plate having a first positioning hole and a second thin plate having a second positioning hole communicating with the first positioning hole and smaller than the first positioning hole, so that the first thin plate and the second thin plate are respectively positioned at ends in a lamination direction; forming the reservoir by positioning and laminating plural plates including a reservoir positioning plate having a reservoir positioning hole, so that the reservoir positioning plate is positioned at an end in the lamination direction; positioning the nozzle plate and the front end by inserting a first positioning pin from a side of the nozzle plate through the nozzle positioning hole and the first positioning hole in a first state where the nozzle plate and the first thin plate face each other; joining the nozzle plate and the front end in the first state; positioning the front end and the reservoir by inserting a second positioning pin after having removed the first positioning pin, through the second positioning hole and the reservoir positioning hole from the side of the nozzle plate through the nozzle positioning hole and the first positioning hole in a second state where the second thin plate and the reservoir positioning plate face each other; and joining the front end and the reservoir in the second state.