This is a replacement black toner cartridge for Hewlett-Packard Color LaserJet 4500 series laser printers. This cartridge has a 9,000 page yield. The HP LaserJet printer has been engineered to work together with its custom-designed HP toner cartridge and specially formulated HP toner, as well as a wide assortment of high-quality HP paper supplies. This Hewlett-Packard LaserJet printing process guarantees that your text and graphic printouts are always clear and sharp, every time you print. This product is provided with a three-month warranty.