Patent ID: 8353577
Filing Date: 2013-01-15
Classification: B41J

Abstract:
1. A method of controlling a direction of droplet ejection from an inkjet nozzle, said inkjet nozzle comprising a nozzle chamber having a roof with a nozzle opening defined therein and a plurality of moveable paddles defining at least part of the roof, each paddle including a thermal bend actuator, said method comprising the steps of: actuating a first thermal bend actuator via respective first drive circuitry such that a respective first paddle bends towards a floor of said nozzle chamber; actuating a second thermal bend actuator via respective second drive circuitry such that a respective second paddle bends towards a floor of said nozzle chamber; and thereby ejecting a droplet of ink from said nozzle opening, wherein actuation of said first and second thermal bend actuators is independently controlled via said first and second drive circuitry so as to control the direction of droplet ejection from said nozzle opening.