Ricoh MP 4055 User Guide - Page 240
When Problems Occur While Logging In, a Device Certificate, Security Guide.
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10. Troubleshooting Message Cause Solution "XXX cannot be YYY because the Digital Signature's device certificate is not currently valid." (XXX and YYY indicate the user action.) The device certificate (PDF with digital signature or PDF/A with digital signature) has expired. A new device certificate (PDF with digital signature or PDF/A with digital signature) must be installed. For details about how to install a device certificate (PDF with digital signature or PDF/A with digital signature), see "Configuring PDFs with Electronic Signatures", Security Guide. "XXX cannot be YYY because there is a problem with the Digital Signature's device certificate. Check the device certificate." (XXX and YYY indicate the user action.) There is no device certificate (PDF with digital signature or PDF/A with digital signature), or the certificate is invalid. A new device certificate (PDF with digital signature or PDF/A with digital signature) must be installed. For details about how to install a device certificate (PDF with digital signature or PDF/A with digital signature), see "Configuring PDFs with Electronic Signatures", Security Guide. • If a fax or an e-mail cannot be sent and a message appears which states that there is a problem with the device certificate or user certificate, a new certificate must be installed. For details about how to install a new certificate, see "Configuring S/MIME" or "Protecting Communication Paths via a Device Certificate", Security Guide. When Problems Occur While Logging In Message "Authentication has failed." "Authentication has failed." Cause Solution The entered login user name or login password is not correct. For details about the correct login user name and login password, see "Basic Authentication", Security Guide. The machine cannot perform For details about authentication, see authentication. "Configuring User Authentication", Security Guide. 238