Canon iR3245 Network Manual page 248

You cannot use encrypted SSL communication for IPP printing, email/I-fax, the Remote
UI, MEAP functions via a web browser, and device information delivery, or confirm
Department IDs and passwords even after you have turned SSL on.
Cause1
Remedy
Cause2
Remedy
Cause3
7
Remedy
<Certificate exp. date error> is displayed.
Cause
Remedy
<Digital sig. cert. access err.> is displayed.
Cause1
Remedy
Cause2
7-20 Encrypted SSL Data Communication Problems and Remedies
The generated key pair or server certificate is corrupted.
After erasing the key pair you are using, generate a key pair and server
certificate.
The preinstalled default key pair or server certificate is corrupted.
After erasing the key pair you are using, generate a key pair and server
certificate.
The registered key pair file or server certificate file is corrupted.
After erasing the key pair you are using, install the key pair file and
server certificate file created on your computer using the Remote UI
(See the Remote UI Guide). Then, register the installed files on the
control panel of the machine.
For instructions on how to confirm whether the key pair you are using is corrupted, see
"Editing Key Pairs and Server Certificates(p.3-42)."
The certificate has expired.
Confirm the expiration date for the certificate.
Access to the user certificate was denied when sending a PDF with a
user signature.
See "Generating and Confirming a Key Pair and Device Signature
Certificate and User Certificate for Adding Digital Signatures to PDF
Files(p.3-50)" to confirm the user certificate settings.
Access to the device certificate was denied when sending a PDF with a
device signature.