网页2021/12/24 · If we take an example of a mobile or small credit card terminal, the optimum size for roll printing paper will be available in these sizes 57mm x 50mm, 57mm x 40mm, 57mm x 38mm. Now, if we switch to measuring the thermal printer paper size, the size range can be found in 80mm x 80mm, 80mm x 70mm, and 80mm x 60mm.