When you send a print command for your document to print, you will be sent a Canon Printer Offline error message instead. This could happen if your Canon Printer is not properly communicated with the computer system. Additionally, connection error is also the one major cause of the appearance of printer offline error issues. Therefore, it is extensively required to check the printer’s power cable if it is plugged into an electrical outlet properly. Furthermore, you can reinstall your Canon Printer Software and disable the ‘Use Printer Offline’ feature to instantly cope with this problem.