Buy the HP C4191A black toner cartridge with 100% confidence! Low Prices and Large Selection on Quality Products. Find everyday low prices on the HP C4191A genuine OEM toner cartridge from a large selection of printer cartridges.Easy to Use and Professional Service. Find all the supported laser printers for the HP C4191A toner cartridge in the "Supported Models" section. Still have questions? Feel free to contact us via Live Chat or Email for fast, friendly, and professional service.Return Policy : Contact Manufacturer.About the HP C4191A black toner cartridge:HP C4191A Type: Genuine OEMA HP C4191A genuine OEM means that it is produced by the same company that makes your printer. Genuine OEM toner cartridges typically command a premium price versus their compatible and remanufactured counterparts, but have been fully certified by their original manufacturer for 100% compatibility and performance with their printers. HP C4191A Yield: 9000A 9000 yield for the HP C4191A means that at 5% coverage (5% of a page is printed on), this toner cartridge will yield ~9000 printed pages.