Printing tower with at least two stacked printing units and a process to control such a printing tower

摘要

The tower (01) has two printing elements (03, 04) arranged sequentially. Lifting platforms (09, 10, 13) pass operating personnel into different heights according to the elements. Two side frames (11, 12) are space changeable in horizontal direction. The frame (12) is moved between function position, in which the frames are merged, and an open position, in which the frames are spaced at particular distance. The platform (13) is arranged between the frames in the open position and is designed as a lifting table.