Patent Document ID: 20110043865
Application ID: 12546077
Patent Status: 0

Claim One:
1. A method for correcting at least one uniformity error selected from the group consisting of a process direction uniformity error and a cross-process direction uniformity error in an image printing system that prints on an image bearing surface movable in a process direction, the method comprising: printing on a media a test pattern comprising a plurality of segmented regions extending in the direction of the at least one uniformity error being corrected, each segmented region corresponding to an adjustment position of the image printing system, and each segmented region comprising a coarse halftone area and a fine halftone area adjacent one another, wherein the resolution of the fine halftone area is at least about 1.5 times the resolution of the coarse halftone area; receiving correction data from the user, wherein the correction data is based on a visual comparison between the coarse halftone area and the fine halftone area in each segmented area; and adjusting a profile of the image printing system to correct for the at least one uniformity error based on the received correction data.