An information processing apparatus including a first data processor processing data sent from an external device, which can switch a power consumption mode thereof; a switcher configured to switch the mode of the first data processing device from the standard power mode to a power saving mode or vice versa; and a second data processor processing the data sent from the external device when the first data processor is in the power saving mode. The second data processor includes a first judging device making a judgment whether the data are to be processed by the first or second data processor depending on the data; and a connection establishing device establishing communication connection with the external device when the first judging device cannot make the judgment from the data.