Abstract: In some examples, a sheet-fed printing press includes a dryer for drying sheets printed by a non-impact printing device. A cooling unit is directly downstream from the dryer in the transport direction, and includes a cooling module above a conveying plane. The cooling module uses air as a cooling medium, and may include a blower module with blower nozzles that blow the cooling medium onto the surface of the sheets being cooled. The blower module forms, with a guide surface, a gap with respect to the surface of the sheet being cooled. The guide surface of the blower module is arranged at a height above the surface of the sheet being cooled so that the cross-section of an outer annular gap, through the cooling medium exits, is smaller than or almost equal to a sum cross-section across all opening surfaces of the blower nozzles in the guide surface.

Abstract: In some examples, a sheet-fed printing press includes a dryer for drying sheets printed by a non-impact printing device. A cooling unit is directly downstream from the dryer in the transport direction, and includes a cooling module above a conveying plane. The cooling module uses air as a cooling medium, and may include a blower module with blower nozzles that blow the cooling medium onto the surface of the sheets being cooled. The blower module forms, with a guide surface, a gap with respect to the surface of the sheet being cooled. The guide surface of the blower module is arranged at a height above the surface of the sheet being cooled so that the cross-section of an outer annular gap, through the cooling medium exits, is smaller than or almost equal to a sum cross-section across all opening surfaces of the blower nozzles in the guide surface.

Abstract: A processing machine includes a dryer device. In particular, the processing machine is a printable material- or sheet-processing or a substrate-processing machine, in particular a printing machine. A method for operating a drying device in such a processing machine is also provided. The processing machine addresses the problem of creating an alternative processing machine comprising a drying device or an alternative method for operating a drying device in a processing machine. In particular, the cooling in preferably high-performs dryers in processing machines, such as substrate, or printable material-processing machines, should be improved. Especially preferably the cooling of the underside of the underside of a UV emitter should also be further improved. The problem is solved by pairing a blast air system with the drying device, by the use of which blast air system, the ambient air flowing into the air inlet opening can be or is actively influenced at a distance from the radiation source.

Abstract: A processing machine includes a dryer device. In particular, the processing machine is a printable material- or sheet-processing or a substrate-processing machine, in particular a printing machine. A method for operating a drying device in such a processing machine is also provided. The processing machine addresses the problem of creating an alternative processing machine comprising a drying device or an alternative method for operating a drying device in a processing machine. In particular, the cooling in preferably high-performs dryers in processing machines, such as substrate, or printable material-processing machines, should be improved. Especially preferably the cooling of the underside of the underside of a UV emitter should also be further improved. The problem is solved by pairing a blast air system with the drying device, by the use of which blast air system, the ambient air flowing into the air inlet opening can be or is actively influenced at a distance from the radiation source.

Abstract: A gripper carriage transports a sheet in a sheet transport direction along a sheet transport path. The gripper carriage has a wall and a reflector. The reflector is associated with a flank of the wall which is trailing, in relation to the sheet transport direction.