Take a Hard Look

Smile, you're on camera

There are two major different kinds of web scan equipment—web inspection systems and web viewing systems.

Todd Guzzardo, sales division manager, inspection technologies, for Erhardt + Leimer Inc., explained the differences between the two systems. "Web inspection equipment detects defects, and makes decisions on its own. A press operator would use a web viewing system to look at the printed material and to compare it in real time to a master reference image," he said. The operator would then make the decision if the printed material was passable or not.