Large, medium and small business users requiring fast, high-quality, reliable network and workgroup printing. The HP 39A Black LaserJet Toner Cartridges offer great print quality, reliable performance and easy-to-use design. These longer-lasting toner cartridges are designed together with your HP printer for crisp, sharp results every time.Compatible Printers: HP LaserJet 4300 DTNS, HP LaserJet 4300 N, HP LaserJet 4300 DTN, HP LaserJet 4300 DTNSL, HP LaserJet 4300 TN, HP LaserJet 4300