Genuine Original Dell Brand RF223 High Yield Toner Cartridge (5,000 pages) for Use In: Dell 1815/1815dn Series (PF658, 310-7945, 0RF223, 0PF658, 3107945) Genuine Original Dell Brand High Yield Toner Cartridge. Brand New in Original Dell Factory Packaging. Dell Part #'s: RF223, PF658, 310-7945, 0RF223, 0PF658 and 3107945. For Use In: Dell 1815 and 1815dn Series Laser Printers. Approximately 5,000 page yield.