How to reset the Apple print system

This solved the issue for a person who had some Canon problems.  Thanks PAHU

How to Reset the Printing System

1. Open System Preferences > Print & Fax
2. Move your mouse over the Printers list
3. Hold down the Control button and click the mouse (or right click if supported).
4. Click “Reset printing system …”
5. Restart your Mac

via Apple – Support – Discussions – Sharing Canon Printer on Network ….