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In the thermal printing process, the words or images are produced on the thermal paper by means of direct heat transmission.
This is done by the printer’s thermal head, which consists of numerous little heating elements. The heating elements are electronically controlled and produce thermal energy which activates a color reaction on the functional thermocoating. The numerous little dots this produces then go to make up letters, barcodes, and images.
Thermal printers have a relatively simple design and are easy to operate, which makes them considerably less susceptible to breakdowns. They are energy-saving, quiet, fast, small, and compact – and they require no other consumables, which in turn saves money and makes them highly reliable. They keep working even under extreme conditions.