Canon LBP6780x Manual page 894

Solution 2 If the printer's certificate is correct, check the authentication server's CA certificate.
IE The certificate has expired.
<Cause> During IEEE802.1X authentication, the certificate received from the authentication server
was an expired certificate.
Solution 1 Check the authentication server's certificate.
Check the printer's and the authentication server's time settings.
Solution 2
"Turning the Power On and Specifying a Language"
IE The certificate is incorrect.
<Cause> During IEEE802.1X authentication, an error occurred as a result of the verification by the CA
certificate of the certificate received from the authentication server .
Solution 1 Check the authentication server's certificate.
Install the CA certificate in the printer.
Solution 2
"Security Settings"
NW Competing IP add. found on the network.
<Cause> The IPv4 address set for the printer overlaps with another host on the network.
Change the printer's IPv4 address and restart.
Solution
"Setting the IP Address (IP v. 4)"
An error occurred while receiving. <Auto Error Skip>
<Cause> The printer received any unanalyzable data while it is receiving a job, or it timed out.
Press [
Solution 1
A problem may be occurring in the network you are using. Check the status of the network that you are
Solution 2
using.
Cannot decode data. <Auto Error Skip>
<Cause> The printer could not analyze encrypted secured print data.
Solution Perform a soft reset using the Reset menu, and then print again.
Cannot decode PDF data.
<Cause 1> An incorrect password was entered to print the PDF data.
Solution Enter the correct password.
<Cause 2> The PDF data security settings do not permit printing.
Solution Change the settings to permit printing.
] ( : Online) to cancel printing, and then print again.