Final answer:
The printer type commonly used in PoS terminals is the Thermal printer, which is fast, low maintenance, and produces durable prints.
Step-by-step explanation:
The printer type commonly used as a Point of Sale (PoS) terminal component is the Thermal printer. Unlike inkjet printers that use electrostatically charged droplets of ink to form images and text on paper, or laser printers that use a laser beam to create a positively charged image on a photoconducting drum, thermal printers directly heat thermal paper to produce images. Thermal printers are favored in PoS systems due to their fast printing speed, low maintenance, and the durability of thermal prints against things like water and oils, which are common in retail and food service environments.