Canon printer PIXMA MG6820 User Manual
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Encryption Settings Screen Appears When Access Point Selected from Search Screen This screen appears automatically if the selected wireless router is encrypted. Set the same encryption settings as those set for the wireless router.
Packets Are Sent Constantly (Windows) When IJ Network Scanner Selector EX is enabled, it periodically transmits packets to check communication with the machine over the network. If you are using your computer in a network environment other than the one used to set up the machine, disable IJ Network Scanner Selector EX. To disable IJ Network Scanner Selector EX, right-click the icon on the notification area on the desktop and select Disable Canon IJ Network Scanner Selector EX . 862
Checking Network Information Checking Machine IP Address or MAC Address Checking Computer IP Address or MAC Address Checking Communication Between the Computer, the Printer, and the Wireless Router Checking Network Settings Information Checking Machine IP Address or MAC Address To check the machine's IP Address or MAC address, print out the network settings information or use the operation panel to display it. LAN settings Printing Network Settings You can check the network setting information on the computer screen.
Click TCP/IP to check the IP address. Click Hardware to check the MAC address. Checking Communication Between the Computer, the Printer, and the Wireless Router Perform a ping test to check if communication is taking place.
If packet loss is 100%, communication is not taking place. Otherwise, computer is communicatingwith target device. Checking Network Settings Information To check the machine's network settings information, print out the network settings information or use the operation panel to display it. LAN settings Printing Network Settings 865
Problems while Printing/Scanning from Smartphone/Tablet Cannot Print/Scan from Smartphone/Tablet 867
Cannot Print/Scan from Smartphone/TabletIf you cannot print/scan from your smartphone/tablet, it is possible that your smartphone/tablet cannot communicate with the machine. Check the cause of your problem according to the connection method. Cannot Communicate with Machine over Wireless LAN Cannot Communicate with Machine while It Is in Direct Connection Note
If the network settings of your smartphone/tablet are not identical with those of the wireless router, change thenetwork settings of it to match with those of the wireless router. Check5 Make sure machine is not placed far away from wireless router. The wireless router is located indoors within the effective range for wireless communication. Locate the machine within 164 ft. / 50 m from the wireless router. Check6 Check for obstructions. Wireless communication between different rooms or floors is generally poor. Adjust the location of the devices. Check7 Make sure there is no source of radio wave interference nearby. 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 the interference source as possible. Cannot Communicate with Machine while It Is in Direct Connection If your smartphone/tablet cannot communicate with the machine in the direct connection, check the following. Check1 Make sure machine is turned on. Check2 Is icon displayed on the touch screen? If the icon is not displayed, tap the icon on the upper right, and then select Activate direct connect. on the Change LAN screen. Check3 Check settings of your smartphone/tablet. Make sure your smartphone/tablet can use the wireless LAN. For more on performing setting of the wireless LAN, refer to the instruction manual provided with your smartphone/tablet. Check4 Have you selected machine as destination of your smartphone/tablet? Select the access point name (SSID) of the machine with your smartphone/tablet. Check5 Have you entered proper password specified for direct connection? If the security setting of the direct connection is enabled, you need to enter the password to connect your smartphone/tablet to the machine. Check6 Make sure machine is not too far away. Locate your smartphone/tablet close enough to communicate with the machine. Check7 Check for obstructions. Wireless communication between different rooms or floors is generally poor. Adjust the location of the devices. 869
Check8 Make sure there is no source of radio wave interference nearby. 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 machine as far away from the interference source as possible. Check9 Make sure 5 devices are already connected. Direct connection does not allow more than 5 devices to be connected. 870