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LessWaiting.com Information Home Page Thermal POS Printer Details Thermal POS, or Point-Of-Sale, printers use a special type of paper which darkens when it is exposed to heat. This type of printer is often used in printing sales receipts to be provided to customers by businesses. An advantage this type of POS printing equipment has is that it doesn't use ink cartridges or ribbons. According to wikipedia.org, some thermal printers are able to print in two different colors, while all of them can print in black. This explains why some receipts turn black when exposed to fire. Consumer use of small thrml. printers was more common during the early 1980s, but they remain popular for business use. Some printer models of this type will run on batteries, making them very portable. Dot matrix printers are the main competitor to thermal units in point-of-sale printing.
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