Patent Document ID: 20150174934
Application ID: 14586931
Patent Status: 0

Claim One:
1. A printing system for measuring the amount of mis-registration between first and second print heads of a digital printing machine comprising: a calibration image generation system configured to create a printed calibration test page; said printed calibration test page comprising a plurality of pairs of overlapping registration targets imprinted by the first and second print heads, each of said pair of overlapping registration targets comprising a target region comprising X and Y coordinates; a scanning and image processing system comprising a memory system and an image processing module stored on said memory system; said image processing module comprising: a first set of code configured to scan said printed calibration test page to produce a bitmap image; a second set of code configured to process said bitmap image to produce a mis-registration score for each of said target regions; and a third set of code configured to produce X and Y registration correction amounts for the second print head based upon the mis-registration scores.