Execute the printer troubleshooter to resolve the 'Canon printer not printing' issue. The built-in troubleshooter in Windows can evaluate and repair your Canon printer. To activate the printer troubleshooter, click the button below. After you've pressed the Windows logo key, enter "troubleshoot." Tap Troubleshoot in the search suggestion box. Run the troubleshooter application to begin the troubleshooting procedure. To open the Troubleshooter, go to Start > Control Panel > Printer. Connect a printer if you're using Windows 7.