Canon imageCLASS LBP121dn - Appendix

Check the Ethernet cable and switch status.
No response from host.
The machine is not connected correctly to the network.
Check the Settings of the Machine and Network, and Connect Again.
When Connected via Wireless LAN
Congure the settings correctly according to your usage environment. Connecting to a Wireless
LAN(P
. 38)
When Connected via Wired LAN
Check that the Ethernet cable is properly connected.
Connecting to a Wired LAN(P. 37)
Paper jammed.
Paper jammed in the machine during printing.
Remove the Jammed Paper, and If Printing Does Not Resume Automatically, Try Printing Again.
Paper Jams(P. 271)
Prepare a cartridge.
It is nearing the time to replace the toner cartridge.
Prepare New Toner Cartridge, and Replace the Old Ones, as Needed.
When printing large jobs, it is recommended to replace the toner cartridge. Replacing the Toner
Cartridge
(P. 257)
To Continue Printing, Press [Continue Printing].
● Y
ou can manually specify when this message appears (when toner is low).
[Displ. Timing for Cartridge
Pr
ep. Notif.](P. 199)
Set the correct authentication information.
The authentication method or authentication information of IEEE 802.1X is not set corr
ectly.
Set the Authentication Method and Authentication Information (Keys and Certicates, Password, CA
Certicate) Correctly.
Setting IEEE 802.1X(P. 155)
Managing and Verifying a Key and Certicate(P
. 157)
Set the information necessary for authentication.
The authentication method or authentication information of IEEE 802.1X is not set corr
ectly.
Set the Authentication Method and Authentication Information (Keys and Certicates, Password, CA
Certicate) Correctly.
Setting IEEE 802.1X(P. 155)
Managing and Verifying a Key and Certicate(P
. 157)
Troubleshooting
334