Original HP printer supplies are easy to obtain, manage, and use. With the convenient HP dual packs that contain two original HP LaserJet toner cartridges in black, interruptions can be minimized. Original HP LaserJet toner cartridges make up to 70% of the printing system. They are developed together with the printer to ensure reliable, professional results that save you time. HP dual packs further reduce printing costs, allowing you to save real money.