When UV Needs TLC

According to Jim Flynn, product manager, UV curing, Hanovia, initial detection of the problem is the easy part. "The usual sign that there is trouble brewing is when the UV system stops curing or you have to slow down to get a proper cure," he states.

Then the going can get dicey, even with the help of radiometers, power pack current meters, and other indicators. "Distinguishing definitively between a lamp and ink problem is difficult. Both can give you the same symptoms," states Pete Kershner, new business development manager, EYE Ultraviolet.