|From the information you have supplied, the problem could be anything!|
The only thing I can suggest is power-cycling the printer (turning it off and on), and then going to the command prompt (start, run, type in CMD and press enter)
In the command prompt type in "net stop spooler" (no quotation marks), press enter then type in "net start spooler" (no quotation marks) and press enter
If all goes well, you should get the message "The Print Spooler service is starting" then "The Print Spooler service was started successfully"
If anything else than this message appears then paste the contents here and we will try and work exactly what is wrong