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The wireless channel to be used may be limited depending on wireless network devices installed in the
computer. Refer to the instruction manual provided with your computer or your wireless network device to
specify the valid wireless channel.
Make sure that the channel confirmed in Check 8 can communicate with the
Check9
computer.
If not, change the channel set to the wireless router.
Make sure that the firewall of the security software is disabled.
Check10
If the firewall function of your security software is turned on, a message may appear warning that Canon
software is attempting to access the network. If the warning message appears, set the security software to
always allow access.
If using any programs that switch the network environment, check their settings. Some programs will enable a
firewall by default.
When using a router, connect the printer and computer to the LAN side
Check11
(same network segment).
When the printer is connected to an AirPort Base Station via a LAN, use
Check12
alphanumeric characters for the name of the network (SSID).
If the problem is not resolved, perform setup again according to the instructions on our website.
• For placement:
Make sure that there is no barrier or obstacle between the wireless router and the printer.
Cannot Communicate with the Printer over the Wired LAN
Make sure that the printer is turned on.
Check1
Make sure that the LAN cable is connected properly.
Check2
Make sure that the printer is connected to the router with the LAN cable. If the LAN cable is loose, connect the
cable properly.
If the LAN cable is connected to the WAN side of the router, connect the cable to the LAN side of the router.
If the problem is not resolved, perform setup again according to the instructions on our website.
Cannot Print from a Computer Connected to the Network
Make sure that the network settings of the computer are correct.
Check1
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Table of Contents
Troubleshooting
