Patent ID: 6884580

Claim:
A method of fabricating an array of biopolymers on a substrate using a dispensing head with biopolymer or biomonomer fluids, the fluid dispensing head having: a reservoir chamber; multiple jets which can dispense droplets onto a substrate, each jet including a delivery chamber communicating with the reservoir chamber, and including an orifice and an ejector which, when activated, causes a droplet to be ejected from the orifice; the method comprising: (a) loading the head through orifices of the jets with biopolymer or biomonomer fluids; (b) positioning the head with the orifices facing the substrate; (c) dispensing multiple droplets from the head orifices so as to form an array of droplets on the substrate; (d) positioning the head with the orifices facing a cleaning station which is spaced from the substrate; (e) exposing the head about the orifices to a cleaning fluid from the cleaning station; and (f) repeating (a) to (f) as needed so as to form the array.