Firmware Updating

Do not turn off the main power of the machine during the firmware updating. If doing so, the engine board or controller board may be damaged.
Never disconnect the cable you are using for the updates during the update process.
When the controller firmware is updated, the fax firmware is also updated at the same time. There is no way to update the fax firmware by itself. The fax firmware is not listed in the configuration page, and so check it by selecting SP mode > Information Display > FW Version > FAX FW".