Canon PIXMA TR4720 Wi-Fi Setup

The Canon PIXMA TR4720 has a model-specific wireless setup path. Use the printer’s own controls and the current Canon setup software rather than repeatedly resetting unrelated settings.

Set up Wi-Fi

1. Make sure the printer and wireless router are on; wait for cleaning/alignment to finish.
2. Press Setup, select Wi-Fi setup, and press OK.
3. Choose the required method: Manual connect for SSID/password, Easy WL connect for device-assisted setup, or another documented method such as WPS.
4. For Easy WL connect, hold Menu/Wireless connect for about three seconds, then return to Canon setup on the computer or phone.
5. If changing connection mode later, use Setup > Device settings > LAN settings rather than deleting unrelated printer settings.

If the printer is not discovered

1. Confirm the router is on and the phone/computer is connected to the intended network.
2. Temporarily avoid guest networks or VPNs that can block local-device discovery.
3. Check the printer’s network/WLAN status or connection report where this model provides one.
4. If the printer is already connected but one computer cannot find it, repair/re-add the printer on that computer instead of resetting the printer network first.

After changing router or password

Run this model’s wireless setup again with the new SSID/password. A driver reinstall alone cannot reconnect a printer whose saved router credentials are no longer valid.

Before calling it a driver problem

Prove the network layer first. If the printer itself is not connected to the router, fix Wi-Fi. If it is connected and another device can print, focus on the affected computer’s queue/software.