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. Outstanding print quality Advanced toner formulation for crisp, sharp output every time Reliable performance Designed for reliable performance and consistently great results Easy to use and maintain Easy to use and maintain due to new cartridge architecture Cost effective HP printing solution for cost-effective workgroup use