Chapter 1: An introduction into “100% print inspection” and the technological status quo.
Automatic
print inspection has become more and more sophisticated over the years.
Originally, print inspection could only be used with a very limited number of
applications and in most cases they had a negative influence on productivity.
Software engineers tried over time their luck with complicated control
algorithms. By now, the market has entered a consolidation phase. Specialized individual
solutions have given way to system solutions, which meet the many different
requirements of the label printers. The first chapter of this article describes
the actual technological state. Its focus is on promoting the understanding of
the technological limits set by the camera and lighting components available
today. The second chapter of this article will describe the practical use of
print image inspection systems within the workflow.