Patent ID: 8358440

Claim:
A system for calibrating a printer, the system comprising: a measurement module operable to detect colors printed on a first tangible medium by the printer and to convert the detected colors to a detected color characterization; a storage module operable to store a calibration file, wherein the calibration file comprises color characterizations of a plurality of different tangible mediums and wherein each color characterization comprises color measurements for one of the plurality of different tangible mediums obtained from the printer via the measurement module when the printer is calibrated; and a calibration module operable to compare the detected color characterization to at least two color characterizations of the calibration file and to determine an adjustment to an output color scheme of the printer based on the comparison to calibrate the printer, wherein each of the color characterizations of the plurality of different tangible mediums includes a reference curve and wherein the calibration module is further operable to determine the adjustment to the output color scheme of the printer using at least two of the reference curves and the detected color characterization, wherein the calibration module is further operable to process said at least two reference curves according to the equation d 2 =R B −1 (R A (M A −1 (R B (d 0 )))) to determine a toner density, wherein d 2 is a desired digital count of the toner, d 0 is a digital count of the toner in one color plane, R B is a reference curve for a first paper type, R A is a reference curve for a second paper type, and M A is a measurement curve for the second paper type.