A receipt printer is a type of printer that is specifically designed to print receipts or other small documents. They are commonly used in retail environments, such as stores and restaurants, as well as in other businesses that need to provide receipts to customers, such as taxi and delivery companies. Receipt printers are typically small and compact, and can be easily integrated into a point-of-sale (POS) system. They can connect to a computer or other device via USB, Ethernet, or a wireless connection, and can print at high speeds to keep up with busy transactions. Receipt printers come in a variety of form factors, including thermal, impact, and inkjet. Thermal receipt printers use heat to transfer ink onto paper, while impact receipt printers use a print head to physically strike the paper. Inkjet receipt printers use small jets of ink to print on paper. Receipt printers often have additional features, such as the ability to print multiple copies of a receipt, or the ability to print logos or graphics.