To fix a “Printer is Offline” issue, first check power, cables, and Wi-Fi. Restart the printer, router, and computer. Set your printer as default and uncheck Use Printer Offline in system settings. Update or reinstall drivers, then run your system’s printer troubleshooter. If it’s networked, re-add the printer or reset the connection to restore communication. https://sites.google.com/view/canon-printer-offline01/home