ESC/POS
ESC/POS (Epson Standard Code for Point of Sale) is a command system and communication protocol developed by Epson for controlling receipt printers and other point-of-sale peripherals. It uses escape sequences (commands starting with the ESC character) to format text, print barcodes, cut paper, and manage printer hardware functions. Widely adopted as an industry standard, it enables software applications to interface with thermal printers across various platforms and programming languages.
Developers should learn ESC/POS when building applications for retail, hospitality, or logistics systems that require receipt or label printing, such as POS terminals, kiosks, or inventory management software. It is essential for direct hardware control in embedded systems or when using low-cost thermal printers that lack high-level drivers, ensuring reliable and consistent output across different printer models from multiple manufacturers.