To provide a printing machine, which performs nearly uniform widthwise treatment and prevents poor printing such as poor partial curing of ultraviolet curing material or the like from developing.

In this sheet-fed press 1, in which UV ink is transferred to a sheet 13 to be carried and is cured by irradiating the sheet 13 with light including ultraviolet rays sent from an UV drier 33, the UV drier 33 is so constituted as to form a widthwise nearly uniform irradiating region 61 by combining a plurality of members of UV emitting diodes 53 irradiating the light including the ultraviolet rays so correlating the irradiating regions 61 of the diodes 53 with each other.