Abstract: A device for printing flat work pieces having a transportation device for the work pieces and having at least one printing device, in which an inking roll rolls on the work pieces transported through the printing device and thereby applies a print image to a surface of the work piece, with the transportation device being provided with a lateral guide for the work pieces. The lateral guide has sections that are individually adjustable via actuators between the neutral position and a test position.

Abstract: A method and a device for printing board-shaped work pieces in a printing gap are provided. The printing gap is formed by two printing rollers that are adjustably spaced apart from each other, with the board-shaped work piece being transported on a transporting device to the printing gap and being printed when passing through the printing gap. Prior to or during the transport to the printing gap, a thickness of each work piece is measured and the printing gap is adjusted prior to the printing process via a parallel or offset change of the distance between the two printing rollers in reference to each other, according to the measured thickness of the work piece.