Wired LAN connection● Have you selected the correct port? If there is no port to use, create a port.Checking the Printer Port(P. 506)Configuring Printer Ports(P. 187)● Is communication not limited by the firewall on your computer? If IP addresses are or an MAC address isincorrectly entered, you will be not able to access the machine. In that case, you need to use the operationpanel to set , , or to .Restricting Communication by Using Firewalls(P. 237)IPv4 Address Filter(P. 365)IPv6 Address Filter(P. 366)MAC Address Filter(P. 366)● Disable security software and other resident software.● Reinstall the printer driver in accordance with the Printer Driver Installation Guide.● Can you print from other computers on the network? If you also cannot print from other computers,contact your local authorized Canon dealer or the Canon help line.USB connection● Have you selected the correct port? If there is no port to use or you are not sure, reinstall the printer driverin accordance with the Printer Driver Installation Guide. When you reinstall the printer driver, the correctport is created automatically.Checking the Printer Port(P. 506)● Is bidirectional communication enabled? Enable bidirectional communication, and restart the computer.Checking Bidirectional Communication(P. 507)● Disable security software and other resident software.● Connect to another USB port on the computer.● Can you print from a USB connection to another computer? If you also cannot print from other computers,contact your local authorized Canon dealer or the Canon help line.Via print server● Can you print from the print server? If you can print from the print server, check the connection betweenthe print server and your computer.Problem with the Print Server(P. 399)● Disable security software and other resident software.● Reinstall the printer driver in accordance with the Printer Driver Installation Guide.● Can you print from other computers via the print server? If you also cannot print from other computers,contact your local authorized Canon dealer or the Canon help line.Printing seems to be slow. *● Disabling Secure Print is recommended if you are not using it.Changing the Valid Time Period for Secured Documents(P. 119)* When the free space in memory is running low, the processing speed of the machine becomes slow, just as a computerdoes. There is nothing abnormal.You cannot print with Google Cloud Print.Using Google Cloud Print(P. 481)Troubleshooting401
