Patent ID: 6796638
Filing Date: 2004-09-28
Classification: B41J

Abstract:
A multi-nozzle ink jet head having a plurality of nozzles that eject ink, comprising:a head substrate in which are formed said plurality of nozzles and a plurality of pressure chambers; a diaphragm that acts as a common electrode and covers said plurality of pressure chambers; piezoelectric body layers that are provided in correspondence with said pressure chambers on said diaphragm; and individual electrode layers that are provided on said piezoelectric body layers and have individual electrode parts corresponding to said pressure chambers and wiring parts for said individual electrode parts; wherein said plurality of nozzles and said plurality of pressure chambers are arranged in at least two rows, wherein said wiring parts comprise: first wiring parts for first individual electrode parts for a first row; and second wiring parts for second individual electrode parts for a second row and drawn toward a same direction of a drawing direction as said first wiring parts, and wherein said diaphragm for the two rows is provided in a region other than a region of said first and second wiring parts.