Apparatus for monitoring a print result in a rotary printing press

摘要

Apparatus for monitoring a print result in a rotary printing press, includes a web monitoring system including a matrix camera (20) that is movable in transverse direction over a web printed in the printing press, the matrix camera being adapted to capture an excerpt of the printed image in synchronism with a repeat of the printed image during a print run, an inspection system for a complete inspection of the printed image, the inspection system including a line camera that extends over the entire widths of the web, and an integrated control desk for the web monitoring system and the inspection system.

主权项

1. An apparatus for monitoring a print result in a rotary printing press, comprising:
a web monitoring system including a matrix camera that is movable in transverse direction over a printed web printed in the printing press, the matrix camera being adapted to capture an excerpt of the printed image in synchronism with a repeat of the printed image during a print run, an inspection system for a complete inspection of the printed image, said inspection system including a line camera that extends over the entire width of the web and adapted to capture a complete image of the printed web and storing the same in digital form which is linked with positional information indicating a location of a respective image area in a longitudinal direction of the web, an integrated control desk for the web monitoring system and the inspection system, and a data processing system adapted to automatically detect errors in the image printed onto the web by analyzing the image captured with the line camera and to display the errors visually on a screen of the control desk, the data processing system being adapted to indicate defective image areas by showing a mark on the screen and to interpret a strike of a user onto this mark as a command to display the image area where the error has been detected on an enlarged scale using the matrix camera.