Patent ID: 7033012

Claim:
An inkjet pen comprising: a body that defines therein a first ink reservoir, a second ink reservoir, a third ink reservoir, and a fourth ink reservoir; a print head operatively supported by the body; a first ink nozzle orifice defined on the print head; a second ink nozzle orifice defined on the print head; a first valve operatively supported by the body and configured to control the flow of a first ink from the first ink reservoir to the first ink nozzle orifice, control the flow of a second ink from the second ink reservoir to the first nozzle orifice; and a second valve operatively supported by the body and configured to control the flow of a third ink from the third ink reservoir to the second ink nozzle orifice, and control the flow of a fourth ink from the fourth ink reservoir to the second ink nozzle orifice, and wherein the first ink reservoir and the second ink reservoir are each selectively and mutually exclusively connectable in fluidic communication with the first ink nozzle orifice by way of the first valve, and the third ink reservoir and the fourth ink reservoir are each selectively and mutually exclusively connectable in fluidic communication with the second ink nozzle orifice by way of the second valve.