How the print spooler stopped spooling.

It happened a few weeks ago. I have had the computer since June of this year (2012) with the printer attached to it and working just fine. It was sending scanning, copying, and printing like a charm. Then the printer went down. The scanner and copier worked fine. So I uninstalled the printer and went to re-install it. This is when I found the error message "The Local Print Spooler service is not running". I attempted to restart the service and nothing. I ran scan disk...nothing. I cleared the Printer folder...nothing. I ran Microsoft updates and of course...nothing. Basically, I am not sure what triggered the print spooler to stop and no matter what program I run to identify the problem it appears unfixable....