Printer Suddenly Cannot Be UsedCannot Communicate with Printer Following Network Settings ChangeCannot Communicate with Printer via Wireless LANCannot Communicate with Printer Using Direct ConnectionCannot Communicate with Printer via Wired LANCannot Print from Network ComputerCannot Communicate with Printer Following Network Settings ChangeIt may take a while for the computer to obtain an IP address, or you may need to restart your computer.Make sure the computer has obtained a valid IP address, and try again to find the printer.Cannot Communicate with Printer via Wireless LANCheck1 Make sure the printer is turned on.Check2 Make sure the printer and wireless router network settings match.Make sure the network settings of the printer (e.g. wireless router name, SSID, network key, etc.) are identicalwith those of the wireless router.To check the settings of the wireless router, refer to the instruction manual provided with it or contact itsmanufacturer.To check the current network settings of the printer, print out the network setting information.Printing Network SettingsIf the printer network settings do not match with those of the wireless router, change the network settings ofthe printer to match with those of the wireless router.Network Settings (IJ Network Device Setup Utility) (Windows)Network Communication (Mac OS)Check3 Make sure the printer is not placed too far away from the wireless router.Place the wireless router and printer where there are no obstacles between them. Wireless communicationbetween different rooms or floors is generally poor. Wireless communication can be impeded by buildingmaterials containing metal or concrete. If the printer cannot communicate with the computer over a wirelessLAN due to a wall, place the printer and the computer in the same room.In addition, if a device like a microwave oven that emits radio waves of the same frequency bandwidth as awireless router is nearby, it may cause interference. Place the wireless router as far away from interferencesources as possible.565
