To determine and eliminate the cause of the Canon Printer Offline problem, utilise the Window Troubleshooting tool Windows comes with a collection of troubleshooting tools aimed at detecting and resolving issues automatically. The goal is to enlist the assistance of the operating system in locating and resolving any issues. You can run a printer troubleshooting tool, and it's possible that it will detect and fix the reason of the Canon Printer Offline problem. To access Settings, press Windows key + I, then select Devices, then Printers & Scanners. The troubleshooter option can be found in the right-hand menu under Related Settings; click it to open it. Now you are totally free to do whatever you choose. A series of inspections will be performed by the troubleshooter. If it encounters any issues, it will inform you of what they are and how they were resolved. Even if it is unable to locate the issue, you can select View full information to obtain an analysis and possibly determine the root cause. Check for port connection for Canon Printer Offline If none of the preceding alternatives worked and the printer is still down, the issue could be with the connecting port. If the controller is connected to the printer via the wrong communication port, the printer will stay disconnected until the connection is restored. In layman's terms, this means that your printer and computer are unable to communicate with one another. Your computer may believe the printer is offline and display the Canon Printer Offline error message if this occurs. The simplest way to open the control panel window is to use the start menu. Double-click the Printers and Faxes or Printers and Devices icon, depending on your Windows version. Select Properties from the context menu that comes when you right-click on the printer icon that may be suggesting the printer connection is in offline mode. Then, at the top of the pop-up window, go to the Ports tab and click the "Add Port" button. Click "New Port" after selecting a regular TCP / IP port from the drop-down list. Click "Next" and then "Finish." after entering the printer's IP address. If the printer was connected to the wrong port, it will immediately reconnect..