Canon MX720 Series Online Manual

Also see for MX720 Series: Online manual Setup guide Online manual Online manual Setup

Contents

Canon MX720 Series Online Manual Manual pdf 27 page image

The Machine Stopped Working SuddenlyCannot Communicate with the Machine over the Wireless LANCannot Communicate with the Machine over the Wired LANCannot Print or Scan from a Computer Connected to the NetworkCannot Communicate with the Machine over the Wireless LAN• Check 1: Make sure that the machine is turned on.• Check 2: Make sure that the network settings in the machine are identical with thoseof the access point.Refer to the instruction manual provided with the access point or contact its manufacturer to check theaccess point settings, and then modify the machine settings.How to Set a WEP/WPA/WPA2 Key• Check 3: Make sure that the machine is not place as far away from the access point.The access point is located indoors within the effective range for wireless communication. Locate themachine within 164 ft. / 50 m from the access point.• Check 4: Make sure that there is no obstruction.Wireless communication between different rooms or floors is generally poor. Adjust the location of thedevices.• Check 5: Make sure that there is no source of radio wave interference in your vicinity.There may be a device such as a microwave oven using the same frequency bandwidth as thewireless station. Place the wireless devices as far away from the interference source as possible.• Check 6: 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 theinstruction manual of your network device or contact its manufacturer.• Check 7: Make sure that the radio status is good and adjust the installation positionswhile monitoring the radio status with IJ Network Tool.Monitoring Wireless Network Status• Check 8: 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 thecomputer. Refer to the instruction manual provided with your computer or your wireless network deviceto specify the valid wireless channel.• Check 9: Make sure that the channel set to the access point is valid to communicatewith the computer, confirmed in Check 8.If not, change the channel set to the access point.• Check 10: 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 thatCanon software is attempting to access the network. If the warning message appears, set the securitysoftware to always allow access.If using any programs that switch the network environment, check their settings. Some programs willenable a firewall by default.• Check 11: When using a router, connect the printer and computer to the LAN side(same network segment).• Check 12: When the printer is connected to an AirPort Base Station via a LAN, usealphanumeric characters for the name of the network (SSID).