Device for achieving a flawless application of printing stock in a printing press

In a printing press having a device for applying air flow to printing stock being transferred by a transfer drum to an impression cylinder so as to achieve a flawless application of the printing stock on the impression cylinder before the printing stock reaches a printing nip defined by the impression cylinder and a blanket cylinder of the printing press, the improvement comprising a flat air-guide element for deflecting air flow produced by the rotary movement of the impression cylinder and the transfer drum to achieve said flawless application of printing stock on the impression cylinder, said flat air-guide element extending over the breadth of the impression cylinder and from adjacent the transfer drum to adjacent the printing nip so as to form a wedge-shaped space defined by the flat-air guide element, the impression cylinder and the transfer drum, said wedge shaped space having a tip extending towards the printing nip.