Patent ID: 6213019
Filing Date: 2001-04-10
Classification: B41F,B41P

Abstract:
A method for controlling the ink feed in a vibrator-type inking unit of a printing machine wherein the ink feed is controllable by individual ink-metering elements which are associated with ink-metering zones, and which interact with an ink fountain roller, and wherein the ink metering elements and a vibrating cycle and a vibrator strip width are further usable to adjust the ink feed, comprising the steps of:determining the proportion of printing area, in individual ink metering zones, of a subject to be printed;comparing the proportion of the printing area in the individual ink metering zones with a predefined limiting value;identifying a group of at least two adjacent zones each of which has a proportion of printing area smaller than the predefined limiting value;in the group of at least two adjacent zones having a proportion of printing area to be printed smaller than the predefined limiting value, setting the ink metering elements such that ink is substantially fed only in a subset of the ink metering zones;identifying zones which have a proportion of printing area greater than the predefined limiting value; andin each zone having a proportion of printing area greater than the predefined limiting value, setting the ink metering elements such that ink is fed in accordance with the proportion of the printing area in such metering zone.