Printing unit of a printing press

The invention relates to a printing unit of a printing machine having a pair of opposed side frames between which at least one printing unit having a plurality of printing unit cylinders and at least one inking unit is arranged, wherein each of the two side frames has a direction of transport of a directed by the printing unit can be guided printing material longitudinal beam, wherein the limit both longitudinal trusses a foot space of the print unit on two parallel sides, serving pipelines are arranged in the foot space between the two longitudinal beams, this pressure unit comprises a plurality of media supply this printing unit, where the led through these pipelines medium is liquid or gaseous form, wherein at least one of the pipes with at least one with each medium to be supplied with at least one consumer or the respective medium-emitting source is connected are arranged in this printing unit.