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The Printer Stopped Working Suddenly

Cannot Communicate with the Printer After the Network Settings Are Changed

Cannot Communicate with the Printer over the Wireless LAN

Cannot Communicate with the Printer over the Wired LAN

Cannot Print from a Computer Connected to the Network

Cannot Communicate with the Printer After the Network Settings Are Changed

It may take a while for the computer to obtain the IP address, or you may need to restart your computer.

Search for the printer again after confirming a valid IP address is assigned to the computer.

Cannot Communicate with the Printer over the Wireless LAN

  1. Check1 Make sure that the printer is turned on.

  2. Check2 Make sure that the network settings in the printer are identical with those of the access point.

    Refer to the instruction manual provided with the access point or contact its manufacturer to check the access point settings, and then modify the printer settings.

    How to Set a WEP/WPA/WPA2 Key

  3. Check3 Make sure that the printer is not place as far away from the access point.

    The access point is located indoors within the effective range for wireless communication. Locate the printer within 164 ft. / 50 m from the access point.

  4. Check4 Make sure that there is no obstruction.

    Wireless communication between different rooms or floors is generally poor. Adjust the location of the devices.

  5. Check5 Make sure that there is no source of radio wave interference in your vicinity.

    If a device (e.g. microwave oven) using the same frequency bandwidth as the wireless station is placed nearby, the device may cause interference. Place the wireless station as far away from the interference source as possible.

  6. Check6 Make sure that the network settings of the computer are correct.

    For the procedures to connect a network device to the computer and set them up, refer to the instruction manual of your network device or contact its manufacturer.

  7. Check7 Make sure that the radio status is good and adjust the installation positions while monitoring the radio status with IJ Network Tool.

    Monitoring Wireless Network Status

  8. Check8 Make sure that the valid wireless channel is used.

    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.

  9. Check9 Make sure that the channel set to the access point is valid to communicate with the computer, confirmed in Check 8.

    If not, change the channel set to the access point.

  10. Check10 Make sure that the firewall of the security software is disabled.

    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.

  11. Check11 When using a router, connect the printer and computer to the LAN side (same network segment).

If the problem is not resolved, perform setup with the Setup CD-ROM or perform it according to the instructions on our website.

  • For placement:

    Make sure that there is no barrier or obstacle between the access point and the printer.

Cannot Communicate with the Printer over the Wired LAN

  1. Check1 Make sure that the printer is turned on.

  2. Check2 Make sure that the LAN cable is connected properly.

    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 with the Setup CD-ROM or perform it according to the instructions on our website.

Cannot Print from a Computer Connected to the Network

  1. Check1 Make sure that the network settings of the computer are correct.

    For the procedures to set up the computer, refer to the instruction manual of your computer or contact its manufacturer.

  2. Check2 If the printer driver is not installed, install it.

    Install the printer driver with the Setup CD-ROM or install it from our website.

  3. Check3 When using wireless LAN, make sure that access control is not set to the access point.

    For the procedures to connect an access point and set it up, refer to the instruction manual of your access point or contact its manufacturer.

    Note