You can do a few things to try and get rid of Canon printer error 5200. You should first restart your computer, then open up your device manager (in Windows, go to Control Panel and select Hardware and Sound > Device Manager). Double-click on Printers and find your printer in that list. Right-click it and choose Properties from the dropdown menu. Go to Print Test Page and click OK. If you still see an error message after that, unplug your printer from its power source for about 30 seconds before plugging it back in again. This will reset it so you can print test pages again without any errors.