Select the certificate to use under IEEE 802.1X from among the device certificates created and installed in advance on the printer. For details about creating and installing a device certificate, see Protecting the Communication Path via a Device Certificate.
Log in as the administrator from Web Image Monitor.
Point to [Device Management], and then click [Configuration].
Click [Device Certificate] under "Security".
Select the certificate to be used for IEEE 802.1X from the drop-down box in "IEEE 802.1X" under "Certification".
Click [OK].
“Updating...” appears. Wait for about one or two minutes, and then click [OK].
If the previous screen does not reappear after you click [OK], wait for a while, and then click the web browser's refresh button.
Log out.