Patent ID: 7376853

Claim:
A network apparatus connected to a communication network and capable of switching between a first operation mode and a second operation mode for receiving data from the communication network, the network apparatus comprising: a data processing device; a data input processing device; and a power supply control device adapted to supply power to the data processing device and the data input processing device in the first operation mode, and to supply power to the data input processing device in the second operation mode, the data processing device comprising: a first storage unit adapted to store the data received from the communication network; and a first controlling unit adapted to control the data processing device; and the data input processing device comprising: a second storage unit adapted to store the data received from the communication network; a second controlling unit adapted to control the data input processing device; and a communication unit adapted to receive data from the communication network, to store the data in the first storage unit in the first operation mode, and to store the data in the second storage unit in the second operation mode, wherein the network apparatus inhibits the switching from the first operation mode to the second operation mode if data is stored in the first or second storage unit and the stored data is predetermined data for use in carrying out a process that is unable to be carried out in the second operation mode.