To provide a liquid transcription device, wherein a fouling prevention member which is mounted for protecting a cylinder is prevented from being deformed.

An ultraviolet drying device 37 and a photoelectric sensor 70 for detecting a circumference of a carrying cylinder 36 are provided at a position close to the circumference of the carrying cylinder 36 set on a downstream side of a carrying direction of a sheet-like article of a rear surface printing unit 11 for posterior printing. When the ultraviolet drying device 37 is turned on and the photoelectric sensor 70 detects that a fouling prevention member is attached to the circumference of the carrying cylinder 36, the driving of a printing machine stops. Further, when an IR lamp 46 of an infrared drying device 47 is turned on and the photoelectric sensor 70 detects that no fouling prevention member is attached to the circumference of the carrying cylinder 36, the driving of the printing machine stops.