To ensure uninterrupted operation, purchase compatible thermal paper before the complimentary paper roll included in the SmartPOS bundle is depleted.
| Paper type | Thermal paper |
| Paper width | 3 1/8 ± 0.02 inches (79.5 ± 0.5 mm) |
| Roll diameter | 3 1/8 inches (80 mm) maximum |
| Inner diameter of the roll paper core | 1/2 inch (13 mm) minimum |
