EPSON — Solving Problems for Advanced Security

Administrator Information > Advanced Security Settings > Solving Problems for Advanced Security Related Information & “About Digital Certification” on page 212 Delete a CA-signed Certificate by Mistake There is no backup file for the CA-signed certificate. If you have the backup file, import the certificate again. If you obtain a certificate using a CSR created from Web Config, you cannot import a deleted certificate again. Create a CSR and obtain a new certificate. Related Information & “Importing a CA-signed Certificate” on page 214 & “Deleting a CA-signed Certificate” on page 216 237 Messages Cause/What to do The certifci ate has expired.

Check if the certificate is valid, or check the date and time on the product. Cause: The certificate is out of date. What to do: ❏ If the certificate is out of date, obtain and import the new certificate. ❏ If the certificate is not out of date, make sure the scanner's date and time are set correctly. Private key is required. Cause: There is no paired private key with the certifci ate. What to do: ❏ If the certificate is the PEM/DER format and it is obtained from a CSR using a computer, specify the private key flie. ❏ If the certifci ate is the PKCS#12 format and it is obtained from a CSR using a computer, create a flie that contains the private key. Cause:

You have re-imported the PEM/DER certifci ate obtained from a CSR using Web Confgi . What to do: If the certifci ate is the PEM/DER format and it is obtained from a CSR using Web Confgi , you can only import it once. Setup failed. Cause: Cannot fni ish the confgi uration because the communication between the scanner and computer failed or the flie cannot be read by some errors. What to do: After checking the specifei d flie and communication, import the flie again.