Lexmark 018C1520E 28/29 - combo return programme printer cartridge black/colour. For use with X2500, X5000 Series, Z845, Z1300 Series printers. This twin pack of genuine Lexmark 28 Black and 29 Colour Inkjet Cartridges (18C1520E) contains everything you need for bright and detailed colour documents from your Lexmark printer. These cartridges are part of the Lexmark Return Program for economical and environmentally friendly printing. Simply pop your empty cartridge back in the packaging when done and return it for quick and free recycling. This pack contains a black cartridge with a 175 page yield and a colour cartridge with a 150 page yield.