Patent ID: 7673988

Claim:
A wireless micro-fluid jetting device configured for ejecting a plurality of inks, the device comprising: a housing containing a logic circuit and fluid reservoirs for at least two different fluids, a micro-fluid ejection head attached to a first end of the housing, the ejection head being in electrical communication with the logic circuit and each of the fluid reservoirs, and containing at least two channel members for directing fluid from the reservoirs to a plurality of fluid ejection nozzles in a nozzle plate member, wherein the ejection nozzles for each of the at least two different fluids are arranged in the nozzle plate member so that adjacent ejection nozzles are in flow communication with different fluids, wherein the micro-fluid ejection head comprises concentric arrays of ejection nozzles for ejecting the at least two different inks; and a self-contained power source in electrical connection with the micro-fluid ejection head for activating the micro-fluid ejection head for jetting the fluids therefrom.