Patent ID: 8001898
Filing Date: 2011-08-23
Classification: B41F,B41P,Y10S

Abstract:
1. A method for adjusting an inking unit of a printing press including: providing a plurality of printing couples in said printing press with each said printing couple including a forme cylinder usable to form a portion of a printed image to be applied to a print substrate; using said plurality of forme cylinders in said plurality of printing couples and forming a multicolor printed image having a defined level of print quality on said print substrate printed by said printing press during a setup phase of said printing press; determining, during said setup phase for the printing press, at least one first actual value of said multicolor printed image and which corresponds to said defined level of print quality of said multicolor printed image and applied to said at least one print substrate by said plurality of forme cylinders in said plurality of printing couples; providing a first measuring device as one of a densitometer and a colorimeter and using said first measuring device for determining said level of print quality of said multicolor printed image applied to said print substrate during said setup phase of said printing couples; using this first actual value and adjusting inking units of said printed couples which apply said multicolor printed image to the print substrate and for forming an established setpoint value for said multicolor printed image having said defined level of print quality during the setup phase; determining, during a production run of the printing press, a plurality of second actual values with respect to said level of print quality of said multicolor printed images which are printed onto the print substrate; acquiring said plurality of second actual values of said level of print quality of said multicolor printed images applied to said print substrate during said production run of said printing press by using a photographic system as a second measuring device, which second measuring device is different from the first measuring device, said second actual values being incompatible with said first actual values; feeding said plurality of second actual values to an adjustment device which adjusts each of the inking units of said plurality of printing couples; using at least an initial one of the second actual values acquired by said photographic system forming said second measuring device, and with said at least one initial one of the second actual values, acquired at the initiation of said production run and corresponding to the setting of the multicolor printed image having said defined level of print quality to be produced on the print substrate and implemented during the setup phase, in the adjustment device, as said established setpoint value; using the adjustment device and determining a deviation of subsequent other ones of said second actual values of said level of print quality of said multicolor printed image, determined during the production run of the printing press, and deviating from the at least initial one of said second actual values and established setpoint value, said subsequent ones of said second actual values of said level of print quality being compared with said at least one initial one of said second actual values of said level of print quality, all as determined by said second measuring device, in said adjustment devices and without referring to said at least one first actual value determined by said first measuring device during said setup phase of said printing press; minimizing said determined deviations of said subsequent second actual values from said at least initial one of said second actual value setpoint value by readjusting said inking units of said printing couples which apply the ink to the print substrate for forming said multicolor printed image; and providing said photographic system usable for acquiring the second actual values of said level of print quality of said printing image applied to said print substrate and acquired during the production run of the printing press as an inline inspection system located in said printing press.