Patent ID: 6238585
Filing Date: 2001-05-29
Classification: B41J

Abstract:
A method of manufacturing an ink-jet head comprising the steps of:forming an etch resist film on first and second sides of a silicon monocrystalline substrate having a face (110);etching part of the etch resist film on said first side of said substrate to expose a first area of the silicon monocrystalline substrateso as to form cylindrical portions having sufficient diameter to discharge ink droplets;etching a second exposed area on the second side of said substrate anisotropically to form a nozzle plate having a plurality of nozzle openings so as to have faces (1-11) and (-11-1) in the direction in which the nozzle openings are arrayed, wherein said nozzle openings are formed after the cylindrical portions are formed; andlaminating a spacer having a plurality of ink reservoirs, ink supply ports and ink cavities on the side of the second exposed area.