DEVICE AND METHOD FOR PRINTING SURFACES OF MATERIAL PANELS, ESPECIALLY WOOD PANELS, WITH A MULTI-COLOUR IMAGE

摘要

A device and method for printing surfaces of material panels, especially wood panels, with a multi-color image. The printing device includes a collision prevention system, a sensor arranged on the printing unit identifying objects that may appear on the surface of the material panel, the identification of an object causing the means for moving the printing unit to have an immediate braking reaction and/or causing the printing unit to move upwards, out of the way, by means of lifting means. The sensor, arranged in the printing direction at a distance from the printing unit, as a wire, thread or contact plate, identifies the object by contact by vibrations or contact pressure.