This B221000 Black Return Program Toner Cartridge from Lexmark is compatible with the MB2236adwe, B2236dw, and MB2236adw Monochrome Laser Printers and provides an approximate yield of 1200 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.