Patent ID: 8864270

Claim:
A method to execute a pause function during printing operation of an ink printing system with at least one printing apparatus, wherein a printing substrate web is printed with a printing unit with print bars having print heads, comprising the steps of: measuring a real value of a web tension of the printing substrate web with a web tension sensor; in the printing operation, regulating the real value of the web tension to a predetermined desired operating value of the web tension of the printing substrate web; with triggering of the pause function, the web tension of the printing substrate web is further regulated by modifying the desired value of the web tension of the printing substrate web such that a displacement of the printing substrate web in proportion to a position of the print heads due to a length change of the printing substrate web during the pause function is compensated so that the printing substrate web assumes a position at the print heads after an end of the pause function that it had before a beginning of the pause function; and after the end of the pause function, regulating the real value of the web tension of the printing substrate web again to said desired operating value of the web tension of the printing substrate web.