A maintenance management system according to the present invention has an electronic device and a database server. In one embodiment of the invention, the electronic device further includes: (1) a log generating unit for collecting states of components and generating a log when a failure is detected during execution of a process; (2) a DB inquiry unit for transmitting the log to the database server and making an inquiry about whether firmware capable of solving the failure exists; and (3) an updating process unit for obtaining firmware capable of solving the failure from the database server and updating firmware in the electronic device with the obtained firmware. In addition, the database server further includes: a storing unit for storing a database having version information of firmware and failure correction information; and an inquiry responding unit for identifying when firmware for solving the failure exists.