The HP 15 LaserJet Toner Cartridge delivers the professional quality and legendary reliability you expect from HP LaserJet printing. You can count on great results every time you print because HP cartridges and printers are designed together. Consistently sharp text and smooth grayscale transitions are achieved with precisely matched system components. HP's Ultraprecise dual-polymer toner and helical roller drive provide reliable, cost-effective performance over the life of the cartridge.