How much extra space left on your hard drive? Is the file you are printing pretty large? Are you trying to print in the background?
When you print in the background, the spool file, as it is called, is written to your hard drive.
You have a couple of options. Clear up hard drive space. Even if you have a big drive with what you think is a lot of empty space, some seemingly innocuous files can take up more spool space than you realize.
Or you can stop printing in the background on the bigger files.