Importance

Loading Importance Indicators...

Abstract

A method for determining setting errors in a sheet-fed printing press includes recording a geometry of a printed sheet running through the printing press with an imaging system and comparing the recorded geometry with intended geometries for evaluation. An imaging system oriented substantially perpendicular to a sheet surface at least partly registers visible contours of sheet edges and conclusions are drawn, from measured deviations of the sheet edges in relation to intended contours, as to at least one of the following setting errors of the printing press:

a faulty sheet transfer because of an incorrect setting of a gripper bar transporting the sheet,a lifting of the sheet off an impression cylinder because of an incorrect setting of blown air for sheet guidance, oran incorrect radius of the impression cylinder, for example because of incorrectly chosen underlays/cylinder covers.

Loading the Abstract Image...

First Claim