This is a Compatible NEC 20-1100 Black Laser Toner Cartridge guaranteed to perform with NEC Laser Printers. It replaces the original NEC 20-100 Laser Toner Cartridge. The compatible replacement 20-100 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 20100 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 20-100 NEC Laser Toner Cartridges and supplies, and offer big savings over brand-name 20-100 Laser Toner Cartridges and supplies. The use of compatible replacement Laser Toner Cartridges and supplies does not void Printer Warranty.lt;brgt;We offer a 100% Quality Satisfaction Guarantee on our Compatible 20-100 Laser Toner Cartridges and supplies.