Patent ID: 6267905
Filing Date: 2001-07-31
Classification: B41J,G06K,G11C,H04N

Abstract:
A method of manufacturing an ink jet printhead which includes:providing a substrate with a solenoid layer that is a magnetic field generating means;etching said substrate to form a nozzle chamber of a nozzle;depositing a sacrificial layer in said nozzle chamber;depositing a first permanent layer on the sacrificial layer;etching said first permanent layer to form a magnetically responsive plunger arranged in suspended relationship relative to the nozzle chamber, wherein the magnetic field generating means, when activated, causes displacement of the plunger towards a nozzle opening of the nozzle to effect ink ejection from the nozzle opening;depositing a second permanent layer and etching said second permanent layer to form a suspension means attached to one surface of the plunger for suspending the plunger in position relative to the chamber and for returning the plunger to a rest position after deactivation of the magnetic field generating means; andremoving said sacrificial layer, thereby forming said printhead.