Method #1:
1. Go to Start>> Run. Type in: services.msc [Enter] or click OK
2. At the Services console, scroll down the list of services until you find the "Print Spooler" service.
Note: A quick way to navigate through the Services is to click once in the right pane of the Services console and type the first letter of the Service you are trying to locate. In this case it would be "P". Windows will automatically scroll down alphabetically until it reaches the first Service that starts with "P".
3. Once you have located "Print Spooler", right click it and select "Stop".
4. Wait a few moments, then right click "Print Spooler" once again and select "Start".
5. Close the Services console and Administrative Tools.
Method #2:
1. Go to Start>> Run. Type in: net stop spooler [Enter] or click OK.
2. Go back to Start>> Run. Type in: net start spooler [Enter] or click OK.
In either method, when you return to the printers queue, any jammed print jobs should be cleared or you should have the ability to cancel the jobs now.
Note: In some cases, you may have to manually update the queue by selecting Refresh from the View menu.