Verbatim Remanufactured Toner Cartridge Replacement for HP Q6470A (Black) Printing technology: laser Printing color: black Duty cycle: up to 6000 pages at 5% coverage Page Yield: 6,000** Yields are based on a 5% area coverage Compatible Hardware: LaserJet 3600, 3800 Series Color Toner Cartridges are manufactured using genuine polymerized (chemical) toner Clear, sharp and consistently accurate color results Limited Lifetime Warranty and protection against printer damage