BPA Free (Contains No Bisphenol A) End of Roll Warning Stripe 3.125" x 230' is the most common paper roll size—used in hundreds of printer models throughout virtually every retail sector. All rolls are tightly wound to prevent jams and other feed problems. 30 Rolls The 3 1/8" x 230' thermal receipt paper roll is our #1 Seller and the most common thermal POS (point-of-sale) printer paper roll size. Thermal paper is made with a special heat-sensitive coating that allows for inkless printing. When heat (from a thermal paper printer) is applied to the coating, the result is a sharp black image without the need for ink or ribbons.