The Machine Stopped Working SuddenlyCannot Communicate with the Machine After the Network Settings Are ChangedCannot Communicate with the Machine over the Wireless LANCannot Print or Scan from a Computer Connected to the NetworkCannot Communicate with the Machine After the Network Settings AreChangedWait until the IP address is assigned to the computer. 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 Machine over the Wireless LANCheck1 Make sure that the machine is turned on.Check2 Make sure that the network settings in the machine are identical with those ofthe access point.Refer to the instruction manual provided with the access point or contact its manufacturer to check the accesspoint settings, and then modify the machine settings.How to Set a WEP/WPA/WPA2 KeyCheck3 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 the machinewithin 164 ft. / 50 m from the access point.Check4 Make sure that there is no obstruction.Wireless communication between different rooms or floors is generally poor. Adjust the location of the devices.Check5 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 the wirelessstation. Place the wireless devices as far away from the interference source as possible.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 instructionmanual of your network device or contact its manufacturer.Check7 Make sure that the radio status is good and adjust the installation positionswhile monitoring the radio status with IJ Network Tool.Monitoring Wireless Network StatusCheck8 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 device tospecify the valid wireless channel.10
