Inline PDF comparison with QualiTronic PDF
QualiTronic PDF acts as a digital proof reader – but not only for texts. The system possesses two functions. First, it references a freshly printed sheet with the PDF data from pre-press. After confirmation of the reference sheet, production is monitored against the virtual reference as soon as the good-sheet counter is started.
A camera resolution of approx. 300 dpi permits detection of even the tiniest deviations, right down to a size of just 90 µm, and that naturally also at the maximum production speed of 20,000 sph.
Detailed information on possible errors in the printed image is presented to the printer on the wallscreen of the ErgoTronic console. At the same time, errors are indicated by way of a warning lamp above the press. Error reports provide comprehensive documentation of the print quality.
On perfector presses, inspection comparisons are performed for both sides of the sheet.