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Countermeasures for Each Message
If you cannot send a fax or the memory is full, or you encounter operation problems, a message appears on the
display. Find out more information about messages in the following list.
A counterfeit or non-Canon cartridge may be in use. The amount in the
cartridge cannot be displayed correctly.
The toner cartridge used may not be a genuine Canon product.
●
Only genuine Canon toner cartridges should be used as replacement toner cartridges.
Consumables(P. 611)
An error occurred during certificate verification.
The certificate has expired, or contains incorrect information.
●
Install the correct CA certificate.
Registering the Key and Certificate for Network Communication(P. 389)
●
Check the certificate for validity period and domain name in the DNS settings.
Black & White copying is restricted. Only Color copying is available.
Black and white copying is disabled in the Department ID Management.
●
To copy in black and white, log in using a Department ID for which black and white copying is not
restricted. For the Department ID and PIN, contact your Administrator.
Setting the Department ID Management(P. 356)
Black & White printing is restricted. Only Color printing is available.
Black and white printing is disabled in the Department ID Management.
●
To print in black and white, log in using a Department ID for which black and white printing is not
restricted. Contact your Administrator for the Department ID and PIN.
Setting the Department ID Management(P. 356)
Cannot analyze the authentication server certificate.
The authentication server certificate may be invalid, or the certificate may be in a format that the
printer does not support.
●
Check the authentication server certificate.
Configuring IEEE 802.1X Authentication Settings(P. 398)
Troubleshooting
644
1647-0EA
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