Using the following procedure to update the main firmware, be sure to print the configuration page both before and after the update. Comparing pre- and post-update configuration pages allows you to check whether or not the update was successful.
Follow the procedure carefully, and note that it will vary in parts depending on which version of the firmware is currently installed.
When using a computer running on a Windows operating system, you must have an account that has Manage Printers permission. Log on as an Administrators group member to acquire this permission.
Do not operate the machine using the control panel, access the machine using Web Image Monitor, or perform fax transmissions, printing, or TWAIN scanning during the update process.
The update may take a while to complete. Do not turn off the power during the update. Turn off the power only when an update completion message appears on the machine’s control panel.
Never disconnect the cable using for the updates during the update process.