Konica Minolta bizhub 421 - Manual (Page 19)

Network Configuration 4
AU-211P 64
Item Description
Verify Validity Period Select whether to verify that the certificate is within the
validity period.
Check Root Signature Select whether to check the root signature.
To check the root signature, view the external
certificates managed on the MFP. For details on how to
register an external certificate on the MFP, refer to
"External Certificate Setting" (page 67).
Check CRL Expiration Select whether to check that the certificate is not
expired in the CRL (Certificate Revocation List).
Check OCSP Expiration Select whether to check that the certificate is not
expired in the OCSP service.
For details on how to configure the OCSP service
setting, refer to "Cert Verification Setting" (page 65).