Canon MAXIFY MB5420 MB5400 series PDF User Manual Mac - Page 889
Machine Suddenly Cannot Be Used
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Machine Suddenly Cannot Be Used Cannot Communicate with Printer Following Network Settings Change Cannot Communicate with Printer via Wireless LAN Cannot Communicate with Printer Using Direct Connection Cannot Communicate with Printer via Wired LAN Cannot Print, Scan, or Fax from a Computer Connected to the Network Cannot Communicate with Printer Following Network Settings Change It 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 LAN Check1 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 identical with those of the wireless router. To check the settings of the wireless router, refer to the instruction manual provided with it or contact its manufacturer. To check the current network settings of the printer, print out the network setting information. Printing Network Settings If the printer network settings do not match with those of the wireless router, change the network settings of the 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 communication between different rooms or floors is generally poor. Wireless communication can be impeded by building materials containing metal or concrete. If the printer cannot communicate with the computer over a wireless LAN 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 a wireless router is nearby, it may cause interference. Place the wireless router as far away from interference sources as possible. 889