Patent ID: 8363240

Claim:
An image forming apparatus, comprising: an external storage unit configured to store ordinary display data used to respond to an access request from a client terminal; a main storage unit configured to temporarily store simplified display data which has smaller volume than the ordinary display data; an accepting unit configured to accept the access request from the client terminal; a determining unit configured to determine whether a power consumption state is in a power saving state, in which the external storage unit is not in operation and the main storage unit is operational, or an ordinary power consumption state, in which the external storage unit is in operation and the main storage unit is operational, in response to the accepting unit accepting the access request; a first responding unit configured to respond to the access request by using the simplified display data temporarily stored in the main storage unit without operating the external storage unit in response to the determining unit determining that the power consumption state is in the power saving state; and a second responding unit configured to respond to the access request by using the ordinary display data stored in the external storage unit that is under operation in response to the determining unit determining the power consumption state is in the ordinary power consumption state.