To provide a sheet guiding device for a sheet-fed printing machine, with which the simplification of the cleaning work of a sheet guide can be devised and, at the same time, the shortening of the working time requiring for executing the cleaning work can be contrived.

This sheet guiding device 10 for the sheet-fed printing machine equipped with the sheet guide 30 for guiding sheets conveyed by being held with chain grippers attached to an endless chain is equipped with the sheet guide 30 with discharging parts 33, through each of which compressed air is discharged, air sucking ducts 31, each of which is located at each of both the sides of the sheet guide 30 and through each of which the compressed air is sucked and a sucking device 32 connected through pipings 36 to the air sucking ducts 31. In addition, blower fans 37 are respectively arranged within the air sucking ducts 31.

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