This Compatible Panasonic UG-5540 UG5540 High Yield Black Laser Toner Cartridge is guaranteed to perform with Panasonic Laser Printers. It Replaces the original Panasonic UG-5540 Toner Cartridge. The compatible replacement UG-5540 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 UG-5540 and offer high-quality printing results. Containing up to 60% new parts including OPC drums, wiper blades, and other internal parts, they are an economical alternative to expensive OEM UG-5540 Panasonic Laser Toner Cartridges and supplies, and offer big savings over brand-name UG5540 Laser Toner Cartridges and supplies. The UG-5540 replaces lower yield UG-5530 / UG5530. The use of compatible replacement Laser Toner Cartridges and supplies does not void Printer Warranty.We offer a Two Year 100% Quality Satisfaction Guarantee on our Compatible UG-5540 Panasonic Laser Toner Cartridges and supplies. For use in the following printers UF Series UF-9000, UF Series UF-8000, UF Series UF-7000.