Digital printing press with register adjustment and method for correcting register errors therein

Abstract

A printing press includes a plurality of individual digital imaging units. A raster image processor receives image data in a machine-independent data format, generates machine-specific image data from the machine-independent image data and delivers the machine-specific image data to the individual imaging units. An error detection device ascertains register errors of the imaging units and generates corresponding register error signals. An image data modification circuit connected upstream of the raster image processor communicates with the error detection device, for modifying the image data in the machine-independent format on the basis of the register error signals and delivering the modified machine-independent image data to the raster image processor. A method for correcting register errors in a printing press includes receiving image data in a machine-independent data format, generating machine-specific image data from the machine-independent image data, and delivering the machine-specific image data to a plurality of individual imaging units, with a raster image processor. Register errors are corrected by manipulation of the machine-independent image data.

Dependencies are inferred from the claim text.