Canon TS6420a, Online Manual, Page: 345 / 439

Cannot Print/Scan from Smartphone/Tablet
If you cannot print/scan from your smartphone/tablet, it is possible that your smartphone/tablet cannot
communicate with the printer.
Check the cause of your problem according to the connection method.
Cannot Communicate with Printer over Wireless LAN
Cannot Communicate with Printer while It Is in Wireless Direct
Note
• For problems on printing with other connection methods or more on performing settings of each
connection method:
Using PIXMA/MAXIFY Cloud Link
Printing from iOS Device (AirPrint)
Cannot Communicate with Printer over Wireless LAN
If your smartphone/tablet cannot communicate with the printer, check the following.
Check1
Check the power status of printer, network devices (e.g. wireless router), and
smartphone/tablet.
• Turn on the printer or devices.
• If the power is already turned on, cycle the power switch.
• It may be necessary to resolve wireless router problems (e.g. update interval of a key, problems of DHCP
update interval, energy saving mode, etc.) or to update the wireless router firmware.
For details, contact the manufacturer of your wireless router.
Check2
Check the settings of your device (smartphone/tablet).
Make sure Wi-Fi is enabled on your device.
For details, refer to your device's instruction manual.
Check3
Is the printer connected to the wireless router?
• Use the icon on the LCD to check the connection status between the printer and wireless router.
icon is displayed, when OK button is pressed.
If the icon is not displayed, Wi-Fi is disabled. Turn on wireless communication on the printer.
• Make sure the network settings of the printer (e.g. network name (SSID) or network key (password), 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.
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