Patent ID: 7555982

Claim:
A process for supplying printing ink to and educing printing ink from a squeegee device of an inking system on a rotary printing press that has a squeegee blade carrier, provided with a longitudinally running trough, with squeegee blades that are adjustable on a form inking roller or on an anilox roller, which, together with the form inking roller and the trough provide an ink chamber, and has lines and first and second pumping devices powered by motors for supplying and educing the ink to and from the ink chamber, comprising presetting pump operational parameters of the motors such that a flow rate ratio between the first pumping device and the second pumping device is fixed and on demand diverting from an ink feed line that feeds the ink from an ink tank to the squeegee device a portion of the feed ink and/or diverting from an ink return line that removes the ink from the squeegee device a portion of the return ink, the feed ink being diverted through a bypass line that departs from the feed line and leads directly to the ink tank, and the return ink being diverted through a bypass line that departs from the return line and connects to the feed line of the squeegee device.