Most Sharp cash registers use thermal receipt paper

All of the newer Sharp cash registers use thermal paper. Every since they retired the Sharp ER-A320 register which used 44mm bond paper all of their registers use thermal paper.

There are two primary sizes of thermal paper for the Sharp registers. Most use the 2.25" thermal 200 foot roll. A few examples are The Sharp ER-A520 paper rolls are 2.25" thermal as well as the ER-530 paper rolls.

The other size which is less popular is 44mm Thermal. A very popular register that uses it is the Sharp ER-A420 paper rolls.

Of course if your cash register uses thermal paper it will not require an ink roller or ribbon!