A device for printing on a print substrate, comprising - a print head shuttle comprising at least one print head (14a, 14b) which is configured, for producing a print image, to apply a printing agent to a print substrate, wherein the print substrate is a web material displaceable along a web path, and the print head shuttle is arranged on a first side of the print substrate; - a print table which is arranged opposite the print head shuttle on a second side of the print substrate, having a holding device which is configured to hold the print substrate during a feed movement of the print substrate, in such a manner that for printing, a relative movement between the print table and the print substrate during the feed movement is prevented; - a first web tension measuring device (7a, 8a), which is arranged along the web path upstream of the print table and is configured to produce first measuring data which indicate a mechanical web tension of the print substrate at the first web tension measuring device; - a first tensioning device which is arranged along the web path upstream of the print table and is configured to set a mechanical web tension of the print substrate; - a second web tension measuring device (7b, 8b), which is arranged along the web path downstream of the print table and is configured to produce second measuring data which indicate a mechanical web tension of the print substrate at the second web tension measuring device; - a second tensioning device which is arranged along the web path downstream of the print table and is configured to set a mechanical web tension of the print substrate; and - a control device which is configured - to receive the first measuring data, to produce first control data based on the first measuring data and to actuate the first tensioning device in accordance with the first control data, in such a manner that the first tensioning device brings about a first predefined web tension of the print substrate at the first tensioning device; and - to receive the second measuring data, to generate second control data based on the second measuring data and to actuate the second tensioning device in accordance with the second control data, in such a manner that the second tensioning device brings about a second predefined web tension of the print substrate at the second tensioning device. - a print head shuttle comprising at least one print head (14a, 14b) which is configured, for producing a print image, to apply a printing agent to a print substrate, wherein the print substrate is a web material displaceable along a web path, and the print head shuttle is arranged on a first side of the print substrate; - a print table which is arranged opposite the print head shuttle on a second side of the print substrate, having a holding device which is configured to hold the print substrate during a feed movement of the print substrate, in such a manner that for printing, a relative movement between the print table and the print substrate during the feed movement is prevented; - a first web tension measuring device (7a, 8a), which is arranged along the web path upstream of the print table and is configured to produce first measuring data which indicate a mechanical web tension of the print substrate at the first web tension measuring device; - a first tensioning device which is arranged along the web path upstream of the print table and is configured to set a mechanical web tension of the print substrate; - a second web tension measuring device (7b, 8b), which is arranged along the web path downstream of the print table and is configured to produce second measuring data which indicate a mechanical web tension of the print substrate at the second web tension measuring device; - a second tensioning device which is arranged along the web path downstream of the print table and is configured to set a mechanical web tension of the print substrate; and - a control device which is configured - to receive the first measuring data, to produce first control data based on the first measuring data and to actuate the first tensioning device in accordance with the first control data, in such a manner that the first tensioning device brings about a first predefined web tension of the print substrate at the first tensioning device; and - to receive the second measuring data, to generate second control data based on the second measuring data and to actuate the second tensioning device in accordance with the second control data, in such a manner that the second tensioning device brings about a second predefined web tension of the print substrate at the second tensioning device. - to receive the first measuring data, to produce first control data based on the first measuring data and to actuate the first tensioning device in accordance with the first control data, in such a manner that the first tensioning device brings about a first predefined web tension of the print substrate at the first tensioning device; and - to receive the second measuring data, to generate second control data based on the second measuring data and to actuate the second tensioning device in accordance with the second control data, in such a manner that the second tensioning device brings about a second predefined web tension of the print substrate at the second tensioning device.