Hi. It is a printer problem. Make sure there is plenty of paper in the machine, and check to see if the printer is jammed for some reason (object stuck in it, or paper/ ribbon jam). Then try an initial reset.
Turn key to P mode.
Turn off at wall.
Hold SUBTOTAL while turning power on at wall.
Machine should print a confirmation.
If you have any more problems, I can be found at EPOSwizard.co.uk
NZtech, May 2008