PRINTING DEVICE AND METHOD FOR PRINTING A PRINTING SUBSTRATE

摘要

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). Subsequently, a position of the at least one second printing unit (9) transverse to the transport direction (A) of the printing substrate (6) is adjusted based on the determined location of the reference image in order to align the at least one second printing unit (9) relative to the at least one first printing unit (9) while the printing substrate (6) is being printed. In addition, a printing device (1) for printing a printing substrate (6) is described, said printing device (1) comprising at least one first printing unit (9) and at least one second printing unit (9), the at least one first printing unit (9), viewed in a transport direction (A) of the printing substrate (6), being located upstream of the at least one second printing unit (9). Furthermore, at least one sensor is provided, said sensor being aligned in a prespecified fixed positional relationship with respect to the first printing unit (9) and being directed at a position of a printing substrate path that is located, viewed in transport direction of the printing substrate, between the at least one first printing unit and the at least one second printing unit, and at least one adjustment unit is provided for the adjustment of the at least one second printing unit transverse to the transport direction (A) of the printing substrate (6) based on a signal of the at least one sensor.