Patent ID: 7163283

Claim:
A system to recycle waste for reuse as a replenishment fluid for a inkjet print station, wherein the system comprises: a. a printhead with a fluid inlet and a fluid outlet; b. an ink supply tank comprising ink and a first level sensor, wherein the ink supply tank is in communication with the fluid inlet; c. a replenishment fluid supply comprising the replenishment fluid, wherein the replenishment fluid supply is in communication with the fluid inlet; d. a replenishment fluid supply valve adapted to control flow between the replenishment fluid supply and the ink supply tank; e. a waste tank adapted to hold waste fluid, wherein the waste tank is in communication with the ink supply tank and the fluid outlet; f. a device for monitoring ink concentration in communication with the ink; g. a waste reuse valve adapted to control flow between the waste tank and the ink supply tank; and h. at least one device adapted to control optimally the valve, the first level sensor, and the device, wherein the controller monitors ink concentration of the system against preset levels and controls the flow of ink to optimize operation of the system.