Method for operating of printing unit entails operating cylinders during washing operation with relative phase position in relation to one another which differs from first relative phase position during printing operation

摘要

The method is for the operating of a printing unit with at least two cylinders (04) contacting a web (01), wherein the cylinders in the printing operation during the printing of the web are operated in the circumferential direction in a first relative phase position. During the washing of the cylinders in the washing operation these two cylinders are operated in relation to one another with a relative phase position different from the first relative phase position. An independent claim is included for a printing unit with an active washing device (07) in which the two cylinders have a relative phase position in relation to one another in such a way that channels of the two interacting cylinders roll on different points of the web with regard to its longitudinal axis.