This B221X00 Black Extra High Yield Return Program Toner Cartridge from Lexmark is compatible with select Monochrome Laser Printers and provides an approximate yield of 6000 pages. It utilizes an innovative shake-free system and provides excellent reliability and image quality. Additionally, the cartridge is eligible for Lexmark's Return Program, which lets you return the cartridge to Lexmark for remanufacturing or recycling.