Check the following troubleshooting procedures if your Canon Printer Troubleshooting. Make that the printer is turned on and that it is properly connected to your computer and the power supply. Check to make sure there are no ink or paper clogs. To make sure there are no pending print jobs, check your computer's print queue. Update or reinstall the printer drivers and software if the problem continues. Restarting both the computer and the printer might occasionally fix simple problems. If the issue persists, consult the Canon support materials or get in touch with their customer service.