The HP 651A Black LaserJet Toner Cartridge prints are crisp, clear, and consistent. It works in your printer to give you an excellent quality print. These HP toner cartridges are based off 5% coverage. HP 651A Black ink cartridges are made from recycled materials, ocean bound plastics and returned cartridges. The cartridge feature is straight forward design for quick and easy installation and simply inserts the cartridge into your printer and start printing without hassle. This advanced formulation provides rich, professional quality text and images that are ideal for important business documents and presentations.