Abstract: 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 includes printing on a media a test pattern that includes a plurality of segmented regions extending in the direction of the at least one uniformity error being corrected, receiving a correction data from the user, and adjusting a profile of the image printing system to correct for the at least one uniformity error based on the received correction data Each segmented region comprising a coarse halftone area and a fine halftone area adjacent one another. The resolution of the fine halftone area is at least about 1.5 times the resolution of the coarse halftone area.

Abstract: This is a system to improve final xerographic image by providing uniformity in both pre-imaged and imaged photoconductive drums or belts. An ESV is placed after the exposure imaging station so that it can measure the voltage on the photoreceptor (PR) belt or drum obtaining a periodic photoreceptor signature. This signature is communicated to a controller and stored therein. After both pre-imaged and imaged signatures are obtained, the controller compensates for these signatures to all imaging runs thereafter to ensure uniform voltage and thereby uniform final images.

Abstract: 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 includes printing on a media a test pattern that includes a plurality of segmented regions extending in the direction of the at least one uniformity error being corrected, receiving a correction data from the user, and adjusting a profile of the image printing system to correct for the at least one uniformity error based on the received correction data Each segmented region comprising a coarse halftone area and a fine halftone area adjacent one another. The resolution of the fine halftone area is at least about 1.5 times the resolution of the coarse halftone area.

Abstract: This is a system to improve final xerographic image by providing uniformity in both pre-imaged and imaged photoconductive drums or belts. An ESV is placed after the exposure imaging station so that it can measure the voltage on the photoreceptor (PR) belt or drum obtaining a periodic photoreceptor signature. This signature is communicated to a controller and stored therein. After both pre-imaged and imaged signatures are obtained, the controller compensates for these signatures to all imaging runs thereafter to ensure uniform voltage and thereby uniform final images.