The key to the thermal printer's thermal printing technology is the heating element, which has a tiny array of semiconductor components, which are very tight, ranging from 200dpi to 600dpi, which will pass through a certain current. Fast produce high temperature, when the thermal paper coating encountered these components, in a very short period of time the temperature will rise, the thermal paper coating will be a chemical reaction, the color.
After receiving the print data, the thermal printer converts the print data into bitmap data, and then controls the heating element on the Printer Mechanism by the point of the bitmap data to pass the current, thus turning the print data into print on the printing paper.
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