Inkjet, Dot Matrix and Daisy Wheel printers all use ink to output characters or images. Thermal Printers apply heat to thermal paper in order to produce images or characters. Additionally, laser printers (not an option) use toner instead of ink.
Thermal printing (or direct thermal printing) is a digital printing process which produces a printed image by selectively heating coated thermochromic paper, or thermal paper as it is commonly known, when the paper passes over the thermal print head. The coating turns black in the areas where it is heated, producing an image. Two-colour direct thermal printers can print both black and an additional colour (often red) by applying heat at two different temperatures.
Thermal transfer …