An information processing apparatus performs data processing and includes a first device, a second device, and a power source unit to supply predetermined power. The first device includes a first communication unit that communicates with the second device, a first initialization unit that initializes the first communication unit with the supplied power based on a notification received from a second communication unit of the second device, a detection unit that detects the second device, and a transmission unit that transmits specific logical information to the detected second device. The second device stores the acquired specific logical information and includes a second initialization unit that initializes the second communication unit with the supplied predetermined power, and a third initialization unit that completes an initial setting of the second device by writing the specific logical information into storage based on the notification from the initialized second communication unit.