Thermal printing technology was first used in fax Handheld Portable Printer. Its basic principle is to convert the data received by the printer into a dot matrix signal to control the heating of thermal sensitive unit, and heat the thermal coating on the thermal paper to develop. Thermal printers have been widely used in Barcode Label Printer systems, banking systems, medical devices and other fields.
Thermosensitive printers can only use special thermosensitive paper. Thermosensitive paper is coated with a coating that will produce chemical reactions and change color when heated, similar to photosensitive film. However, this layer of coating will change color when heated.
Thermal printers work by installing semiconductor heating elements on the print head, heating the print head and touching the thermal paper to print the desired pattern, similar to the principle of a thermal fax machine. The image is created by heating a chemical reaction in the membrane. This Android Thermal Printer chemical reaction takes place at a certain temperature. High temperatures will speed up the chemical reaction. When the temperature is below 60℃, the paper takes quite a long time, even several years to become dark; Android POS Terminal, the reaction takes place in microseconds.
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