A data processing device includes a notified party storage unit for storing a party notified of information on the data processing device; a notification unit for notifying each notified party of the information on the data processing device; a reception unit for receiving from an information processing apparatus a registration request for requiring notified party registration to the notified party storage unit; and a setting unit for setting at least one of the information processing devices as a specific information processing device, in which the notified party storage unit stores the notified party such that the number of the notified parties registered according to the registration request from information processing device that is not the specific information processing device does not exceed a predetermined number among the number of the notified parties that can be stored in the notified party storage unit.