To reset the Wi-Fi on your Canon printer, follow these steps. First, locate the printer's control panel and navigate to the "Settings" or "Setup" menu. Select "Wireless LAN" or a similar option. Choose "Wireless LAN Setup" and then "Reset Settings." Confirm the action and wait for the printer to restart. Once restarted, go back to the "Wireless LAN Setup" menu and select your Wi-Fi network. Enter the password if prompted. The printer should now be connected to the Wi-Fi network, and you can resume printing.