Canon MF247dw User Manual page 560

Cannot specify a group.
Group Dial was specified as a destination after pressing <Hook>.
● Once you tap <Hook>, you cannot specify destinations in Group Dial. Tap <End> on the <Specify
destination.> screen, and specify destinations to send fax documents without tapping <Hook>.
Cannot use Google Cloud Print. Server authentication failed.
Cloud Print could not perform server authentication, or could not acquire information for registration.
● Check whether the date and time settings are correctly specified.
Date/Time Settings(P. 490)
Cannot use Google Cloud Print. Server communication error.
Cloud Print is unavailable due to an error.
Check whether the machine is correctly connected to a wireless LAN or wired LAN.
Connecting to a Wireless LAN (MF249dw / MF247dw)(P. 319)
Connecting to a Wired LAN(P. 318)
● A port that is used for Cloud Print may be blocked by a firewall or other protection. Check whether the
5222 port is available with your computer.
● If a proxy server is used on the network, check whether the proxy settings on the machine and the server
are correct. For details, contact your Network Administrator.
Setting a Proxy (P. 411)
Cart. Communication Error A counterfeit or non-Canon cartridge may be in
use.
Toner cartridge is not installed correctly, or there is possible trouble on the toner cartridge.
● Reinstall the toner cartridge. If this message does not disappear after reinstalling several times, the toner
cartridge might be possibly broken. Contact the shop where you purchased the machine, or the Canon
Customer Care Center.
How to Replace Toner Cartridges(P. 604)
You might not be using a Canon genuine toner cartridge.
● We recommend Canon genuine toner cartridges as replacement toner cartridges.
Consumables(P. 659)
Cartridge has reached end of lifetime. Rplcmt. recommended.
The toner cartridge has reached the end of its lifetime.
Troubleshooting
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