Sticker Direct Thermal Direct thermal printing Is to print the head type, touch the surface of the sticker paper directly No need to use ribbons. By the surface of the sticker Will coat chemicals When heated, it will turn black. Because of this, there is no need to use ribbons. This type of printing method may seem to be economical because there is no need to buy a ribbon. But this method will cause the print head to lose faster than the heat transfer printing through the ribbon Because the print head must be exposed to the surface of the paper directly Rough paper surface will cause the print head to lose faster. The disadvantage of Direct Thermal printing is that the barcode stickers will turn yellow all the time and the printouts will fade away. The gray color, the printed labels are about 6 months old.