SOPS,
Without any information on your Hardware, OS, and Printer, it is very hard to troubleshoot.
As a stab in the dark, it could be a corrupted printer driver or even a bad printer cable. I would start by uninstalling the printer driver, doing a search though your windows directory and manually deleting any drivers from you printer that are still there.
Then try reinstalling the printer drivers and see if that solves the problem.
Take Care,
Richard