A receipt printer is a specialized device used to print receipts for transactions, commonly found in retail stores, restaurants, and service providers. These printers typically use thermal printing technology, which allows for fast and quiet printing without the need for ink or toner. They connect to point-of-sale (POS) systems, enabling businesses to provide customers with a printed record of their purchases. Receipt printers come in various types, including thermal printers, impact printers, and inkjet printers. They can print on different paper sizes and formats, depending on the business's needs. Many modern receipt printers also support wireless connectivity, allowing for greater flexibility in their placement and use.