OS X Mountain Lion: Reset the printing system
If you can’t print to your printer and you’ve tried all other solutions, reset the printing system. This process deletes all printers from your list of printers, deletes information about all completed print jobs, and deletes all printer presets.
- First, try all other troubleshooting techniques.
- Choose Apple menu > System Preferences and click Print & Scan.
- Hold down the Control key as you click in the list at the left, and choose “Reset printing system” from the menu that appears.
After you reset the printing system, the list of printers in Print & Scan preferences is empty.
- Add the printers you use.