This is a compatible replacement for the Samsung SCX-4720D5 SCX4720D5 high yield black laser toner cartridge guaranteed to perform with your Samsung SF-5100 laser printer. It replaces the original Samsung SCX-4720D5 laser toner cartridge. The compatible replacements for the SCX-4720D5 laser toner cartridges and supplies also known as generic are specially engineered to meet the highest standards of quality, reliability and exceptional yields that meet or exceed OEM Original Equipment Manufacturer standards for the SCX4720D5 and offer high-quality printing results. Containing new and used parts, including a new smart chip, they are an economical alternatives to expensive OEM SCX4720D5 Samsung laser toner cartridges and supplies, and offer big savings over brand-name SCX-4720D5 laser toner cartridges and supplies. While most competitors simply refill the toner cartridge and hope the drum and other key components last we fully disassemble the toner cartridge and rebuild it to ensure the highest quality prints. We directly import these compatible LD Products replacements for SCX-4720D5 / SCX4720D5 laser toner cartridges from an ISO-9001 certified factory in Korea just like the genuine Samsung toners. Since we import ourselves we can pass the savings on to you. The use of compatible replacement laser toner cartridges and supplies does not void your printers warranty.We offer a Two Year 100% Quality Satisfaction Guarantee on our compatible alternatives to SCX-4720D5 laser toner cartridges and supplies..