Sheet-guiding system

Sheet-guiding system including a transporting device carrying a gripper device for gripping a leading edge of a sheet freshly printed on at least one side thereof for guiding the sheet along an imaginary guide path in a sheet travel direction extending perpendicularly to the leading edge of the sheet, and a member having a sheet guide surface spaced from the guide path, comprising a plurality of first air blast nozzles disposed in the member and having respective nozzle openings disposed in the sheet guide surface for emitting an air flow onto a surface of the sheet facing towards the sheet guide surface, said air flow having a first main flow direction extending substantially parallel with and in the direction of sheet travel, means defining a second sheet surface facing away from the sheet guide surface, a plurality of second blast nozzles formed with respective nozzle openings for emitting respective air jet bundles having a respective second main flow direction and being disposed in a plane perpendicular to the leading edge of the respective sheet, said first and said second main flow directions, respectively, intersecting and defining an angle therebetween having a maximum value of 90.degree. and, in a condition wherein said second main flow direction of said air jet bundles is inclined with respect to the guide path, an imaginary elongation of a central air jet of said air jet bundles, respectively, passing through the guide path and onto the first nozzle openings, respectively, disposed in the sheet guide surface.