Printer taking a long time to print or just not printing

1. Click Start, Settings, Control Panel.
2. In the Control Panel double-click the Administrative Tools and then Services.
3. Within services locate Print Spooler and right-click it and select Stop.
4. Once this process has been stopped leave the windows open and open My Computer and browse the the below folder: c:\windows\system32\spool\PRINTERS
5. In this folder delete all the files. 
6. Once these spooled files have been deleted you can right-click the Print Spooler in the Services window and click Start to re-enable the service.

source: http://www.justanswer.com/computer/2d0vc-printer-takes-long-time-print.html