A data carrier printed by line intaglio having a halftone image represented by irregular line structures in the manner of an engraving. The system includes a seat belt associated with a seat of a vehicle and a shoulder belt portion of the seat belt comprising a shoulder stabilizing zone and a thorax belt portion, wherein the shoulder stabilizing zone includes a larger width dimension than the thorax belt portion. The method comprises receiving a digital image of at least a portion of the test object including a target area where the expected encoded image would be applied if the test object is an authentic object. The means for deflecting is configured so that, during the process of irradiating, each of the light beams subsequently in time irradiates different portions of the respective assigned intermediate faces.