To provide a printing press with a drying device capable of reliably storing an integrated value of an irradiation time of a light emitting diode, and surely notifying an operator of the replacement timing of the light emitting diode.

At least two or more control parts 21, 22 executing control of the printing press are arranged. The control parts 21, 22 are capable of storing the integrated value of the irradiation time of the light emitting diode 13, and the control parts 21, 22 mutually update their integrated values to the newest values by comparing the integrated values with each other.