The cash register guys carry the harder to find cash register receipt paper and ink ribbons and rollers. One paper size in particular that seems to be harder for people to find is the 44mm thermal paper. Many Sharp cash registers use 44mm paper including many XE models.
We always stock 44mm thermal as well as 44mm bond paper rolls as well. Not sure what you register uses then call us at 1-800-863-2274 and I'm sure we carry your cash register supplies.