Patent ID: 7201471
Filing Date: 2007-04-10
Classification: B41J,B82Y,G06F,G06K,G11C,H04N

Abstract:
1. A micro-electromechanical (MEMS) device for ejecting a drop of liquid, the MEMS device comprising: a supporting substrate; a chamber formed on the substrate for holding a quantity of the liquid; an actuator attached to the substrate for movement relative to the substrate; a liquid ejecting mechanism attached to the actuator for movement within the chamber; drive circuitry on the substrate for generating drive signals to drive the actuator; and, an ejection port in fluid communication with the chamber such that movement of the liquid ejecting mechanism in response to the actuator receiving a drive signal causes a drop of the liquid ejecting through the ejection port; wherein, actuation of the actuator causes greater movement of the liquid ejecting mechanism relative to the substrate than the actuators movement relative to the substrate.