Canon PIXMA TR4500 Series Online Manual page 350

Check printer settings.
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Select LAN settings > Wireless Direct > Switch WL Direct in this order and select Yes.
Check the settings of your device (smartphone/tablet).
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Make sure Wi-Fi is enabled on your device.
For details, refer to your device's instruction manual.
Make sure printer is selected as connection for device (e.g. smartphone or
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tablet).
Select the network name (SSID) for Wireless Direct specified for the printer as the connection destination for
devices.
Check the destination on your device.
For details, refer to your device's instruction manual or visit the manufacturer's website.
To check the network name (SSID) for Wireless Direct specified for the printer, print out the network setting
information of the printer.
Printing Network Settings
Have you entered the proper password specified for the Wireless Direct?
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To check the password specified for the printer, print out the network setting information of the printer.
Printing Network Settings
Make sure the printer is not placed too far away from the device.
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If the distance between the printer and device is too far, wireless communication becomes poor. Place the
printer and device close to each other.
Make sure 5 devices are already connected.
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Wireless Direct does not allow more than 5 devices to be connected.
Cannot Print/Scan/Fax through Network
Make sure the computer is connected to the wireless router.
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For more on how to check the computer settings or connection status, see your computer instruction manual
or contact its manufacturer.
If MP Drivers are not installed, install them. (Windows)
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Install the MP Drivers using the Setup CD-ROM or install them from the Canon website.
Make sure wireless router does not restrict which computers can access it.
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