If your Canon printer shows “Offline,” it means it’s not communicating with your computer. Check if the printer is powered on, properly connected via Wi-Fi or USB, and set as the default printer. Restart the printer and computer, and clear any pending print jobs. Updating drivers or troubleshooting network issues can also help bring it back online. https://medium.com/@isabellawelsh0311/how-can-i-get-my-canon-printer-back-online-57c569986e8f