Patent ID: 8270009

Claim:
An image forming apparatus, comprising: a control section; and a display section connected to a system bus of the control section, wherein the display section comprises: a display device; a screen data storage section to temporarily store screen data of an operation screen; and a display control section to instruct the display device to display the operation screen of the image forming apparatus based on the screen data, and wherein the control section comprises: a storage section to store the screen data of the operation screen which pertains to a function provided to the image forming apparatus, wherein the control section transfers the screen data of all operation screens including an initial screen and a normal screen to the screen data storage section through the system bus after a power source of the image forming apparatus is turned on and before the function becomes an operable state, the screen data being stored in the storage section in advance, and wherein the display control section instructs the display device to display the operation screen based not on the screen data stored in the storage section but on the screen data stored in the screen data storage section, before the function of the image forming apparatus becomes the operable state and after the function has become the operable state.