Abstract: Sheet-fed printing press, especially a satellite-type printing press by which double-side printing is performed with a single satellite-type press and if only single-side printing is required a sheet perfecting apparatus does not intervene in the sheet transfer path. In the course of printing with a plurality of printing units (26) provided in satellite-like manner around a common pressure cylinder (10), a sheet perfecting apparatus (36) is provided for inverting the sheet of material for double-side printing. The sheet perfecting apparatus is separable from the sheet transfer path for printing on one side only. The sheet perfecting apparatus is made up of a first transfer cylinder (38) a perfecting cylinder (40) and a second transfer cylinder (42).

Abstract: Sheet perfecting apparatus for a satellite-type printing press by which double-side printing is performed with a single satellite-type press and if sheet perfecting is not needed the sheet is printed on one side only. In the course of printing with a plurality of printing units (26) which are provided in satellite-like manner around a common pressure cylinder (10), a plurality of chain gripper conveyors (38, 42) are arranged in parallel and are connected via a perfecting cylinder (40) to invert the sheet of material.