Patent ID: 6258285
Filing Date: 2001-07-10
Classification: B41J,H04N

Abstract:
A method of manufacturing an ink jet printhead which includes:providing a substrate;etching said substrate to form a nozzle chamber;depositing a sacrificial layer in said nozzle chamber;depositing a permanent layer containing at least one thermally conductive layer on the sacrificial layer;etching said permanent layer to form a first actuator, containing a first part of said at least one thermally conductive layer, displaceably arranged relative to the nozzle chamber and a second actuator, containing a second part of said at least one thermally conductive layer, also displaceably arranged relative to the nozzle chamber;etching said substrate to form a nozzle opening with said nozzle chamber in communication with said nozzle opening, wherein the first actuator is displaced towards the nozzle opening to effect ink ejection from the nozzle opening and the second actuator assists in refill of the nozzle chamber after ejection of ink under the action of the first actuator; andremoving said sacrificial layer, thereby forming said printhead.