Verifying Certificate Validity Using Certificate Revocation List

You can verify the validity of the certificate by using a Certificate Revocation List (CRL). You can also delete an unnecessary Certificate Revocation List.

Press

(Settings/Registration).

Press [Management Settings] → [Device Management] → [Certificate Settings].

Press [Cert. Revocation List (CRL)] → select the next step.

Verify the validity of the certificate:

Delete the certificate revocation list:

Verify the validity of the certificate:

Select the certificate revocation list for the certificate you want to verify → press [CRL Details] → [Verify CRL].

Confirm the validity of the certificate with the displayed result.

IMPORTANT
For more information on the check result, see "Network/Security."

Press [OK].

NOTE
To check the certificate authority, press [Serial No. List].

Delete the certificate revocation list:

Select the certificate revocation list you want to delete → press [Delete].

Press [Yes].

Press [OK] → [OK].

IMPORTANT
For instructions on how to install a certificate revocation list, see "Installing a Certificate File."

NOTE
Up to 50 certificate revocation lists can be registered.