Lexmark T640, T642, T644 High Yield Return Program Print Cartridge, 21000 page yield.
Lexmark T640, T642, T644 High Yield Return Program Print Cartridge, 21000 pages, Black
Lexmark T640, T642, T644 High Yield Return Program Print Cartridge. Black toner page yield: 21000 pages, Printing colours: Black