Patent ID: 7880928
Filing Date: 2011-02-01
Classification: G03G

Abstract:
1. A method of controlling hue variation associated with a color IME (Image Marking Engine) comprising: printing a control patch for each color separation associated with the IME, the control patches associated with the actual rendering of respective target colors; measuring the color separation error associated with the control patches relative to respective target colors; determining which color separation has the maximum color separation error, and which color separation has the minimum color separation error; determining the color separation error range ERR_range=ERR Max−ERRMin, where ERR_Max equals the maximum color separation error and ERRMin equals the minimum color separation error; and reducing the density of the target color associated with the color separation associated with the maximum color separation error by a fraction of the ERR_range, and increasing the density of the target color associated with the color separation associated with the minimum color separation error by a fraction of the ERR_range, wherein the adjustment of the target colors associated with the maximum color separation error and minimum color separation error reduces the IME rendered hue variation associated with the IME color separations.