Abstract: Disclosed are a method and a device for measuring a running direction of a substrate web (6). The method for measuring a running direction of a substrate web consists of the substrate web (6) being guided around a measuring roller (12), at least one bearing force of the measuring roller (12) being measured, and the running direction of the substrate web (6) being determined based on the measured bearing force. The device (10) for measuring the miming direction of a substrate web (6) comprises a measuring roller (12), with the substrate web (6) being guided around said measuring roller (12). Furthermore, the device (10) comprises at least one sensor (18a, 18b, 18c) for measuring a bearing force of the measuring roller (12) and comprises an evaluation circuit, said evaluation circuit being connected to the at least one sensor (18a, 18b, 18c) and being suitable for determining an alignment of the substrate web (6) based on the bearing force measured by the sensor (18a, 18b, 18c).

Abstract: Disclosed herein is a method for printing a printing substrate (6), in which the printing substrate (6) is printed with at least one first printing unit (9) and at least one second printing unit (9), said at least one second printing unit, viewed in a transport direction (A) of the printing substrate, being located downstream of the at least one first printing unit. In this method, a reference image is applied by the at least one first printing unit (9) and a location of the reference image is determined in a direction transverse to the transport direction of the printing substrate (6) in a position that is located, viewed in transport direction of the printing substrate, between the at least one first printing unit (9) and the at least one second printing unit (9).