The PIXMA G4270 can be placed into Easy Wireless Connect mode. This allows you to use a computer or mobile device to send network information to the printer so that it can connect to your wireless network.
With the printer powered on, press and hold the button below the wireless connect
symbol on the operation panel until the following appears on the screen.

The printer is ready to receive the information it needs to connect to your wireless network.
Click your operating system for instructions on sending your wireless network information to the printer.
Windows
macOS
iOS / iPadOS
Android
ChromeOS
If your product issue was not resolved after following the steps above, or if you require additional help, please create or log in to your Canon Account to see your technical support options.