Generally 80mm × Φ60mm, 57mm × Φ50mm two common specifications.
Introduction of thermal paper:
It is a kind of special high-grade paper, using a chemical raw material coated on the paper, so that the paper can be subjected to heat to change the color, without the need to use ink or ink. Thermal paper can be used in thermal printers and is especially useful in inexpensive and lightweight devices such as fax machines, adding machines, cash registers and credit card terminals.
Introduction of thermal printer:
It is a printing device that prints images by heating them and creating a chemical reaction in the film to accomplish the printing task. Its working principle is the print head is installed with a semiconductor heating element, the print head is heated and contact with the thermal printing paper to print out the required pattern, the principle is similar to the thermal fax machine. Thermal printers have been widely used in POS terminal systems, banking systems, medical instruments and other fields. Thermal printers can only use special thermal paper, thermal paper coated with a layer of heat will produce a chemical reaction and discoloration of the coating.