Canon imageCLASS MF266dn II User Manual page 651

Toner cart. life end. Replcmt. recommended.
The toner cartridge has reached the end of their lifetime.
It Is Recommended to Replace with New Toner Cartridge.
Press [Display Recovery Steps] and replace the toner cartridge while following the instructions on the screen.
Replacing the Toner Cartridge(P. 532)
[Error Information/Notification]
Toner cart. reached end of lifetime.
The toner cartridge has reached the end of their lifetime.
It Is Recommended to Replace with New Toner Cartridge.
Press [Display Recovery Steps] and replace the toner cartridge while following the instructions on the screen.
Replacing the Toner Cartridge(P. 532)
[Error Information/Notification]
Use Remote UI to set info. necessary for authentication.
The authentication method or authentication information of IEEE 802.1X is not set correctly.
Check the IEEE 802.1X Setting, and Set This Correctly.
Check the following, and change the setting, as needed.
● The login name is specified correctly.
● At least one of the following checkboxes is selected: [Use TLS], [Use TTLS], and [Use PEAP].
● When using TLS, a key and certificate are registered.
● When using TTLS or PEAP, the user name and password are set correctly.
Troubleshooting
[Toner Cartridge End of Lifetime]
[Toner Cartridge End of Lifetime]
Setting IEEE 802.1X(P. 361)
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[Display Recovery Steps]
[Display Recovery Steps]