Inline UV Main Exposure technology for CDI Spark 2530 and CDI Spark 4835 Cyrel Digital Imagers allows narrow-web digital flexo plates to receive ultraviolet exposure within the same device where they are imaged, rather than requiring a subsequent separate exposure step on an offline light frame. On-press color fluctuations due to UV inconsistency can be completely eliminated, reducing the total job-to-job color variations in half. The new system also requires less energy and cooling, eliminating frequent lamp replacement and reducing production waste and time.