Patent ID: 7593127

Claim:
An image forming apparatus comprising: a plurality of processing sections that include storage devices storing data associated with the respective processing sections, and execute controls based on the data stored in the storage devices; a storage section that stores basic data, which is an original combination of the data stored in the storage devices; a receiving section that receives overwrite data from outside; a first control section that executes a control to store the overwrite data received by the receiving section in the storage section; an overwrite section that overwrites the data in the storage device of the associated processing section, using the overwrite data received by the receiving section; a confirming section that confirms whether the image forming apparatus is operable with a combination of the data stored in the storage devices immediately after the overwrite section overwrites the data or immediately after power to the apparatus is turned on; and a second control section that executes, when the confirming section confirms that the image forming apparatus is not operable, a control to overwrite the data in the storage devices on the basis of a latest optimal combination of the basic data and overwrite data stored in the storage section.