HP Color LaserJet toner cartridges and kits are designed to work together with HP Color LaserJet 4500 Series printers for optimum color output every time. You’ve chosen a printer from HP, the market leader in color laser printers. Now choose the printing supplies designed to make the most of your investment. Features HP UltraPrecise innovations: - Spherical color toner is chemically grown for uniform particles and consistent color - “Low”" and ““Out”” messages on control panel and a printable configuration page allows you to manage all your cartridges and kits - Easy-to-install, with a rotating carousel that eliminates Low cost per page for four-color printing and no penalty for black-only printing Designed to work flawlessly with HP Color LaserJet specialty and everyday papers Backed by HP’s limited lifetime warranty for cartridges and drum kit, one-year or until end-of-life message appears warranty for transfer and fuser kits"