I'll be honest, I'm not too familiar with a receipt printer, but I've often heard they can be a pain unless you know how to handle them with care. I know when I was a desk clerk for a local hotel here in Independence, KS we always had problems trying to get our printer to print out receipts.
It never seemed to want to network with all of the computers and it was always on the blitz for one problem or another. After a while our manager decided the best thing to do was just hire someone who knew what they were doing and after that things went smoothly with the darn thing. Of course I honestly have no idea if it's still working great or not! LOL