Patent ID: 6074048
Filing Date: 2000-06-13
Classification: B41J

Abstract:
A multi-nozzle ink jet head comprising:a first member including a plurality of first convex parts disposed in line on a part of a surface of the first member, in which at least a part of each of the first convex parts is a piezoelectric element;a second member made of non-piezoelectric materials, including a plurality of concave parts which correspond to the first convex parts, respectively, and second convex parts each of which have side surfaces and are disposed between adjacent ones of the concave parts, in which the second member is engaged with the first member by inserting each second convex part between a couple of adjacent first convex parts and forming an ink cavity between a bottom of each concave part and a top of a respective first convex part; anda plurality of electrodes being applied to the piezoelectric element included in each of the first convex parts,a plurality of first gaps formed between a top surface of each of the non-piezoelectric second convex parts and the first member and a plurality of second gaps formed between a side surface of each of the non-piezoelectric second convex parts and the first member, and the first gaps and the second gaps are filled with a filling members,wherein said filling member includes a film whereby said first member is engaged with said second member through said film.