Original HP toner cartridges deliver consistent, print shop-quality results on a wide range of papers designed for professional office printing. Depend on trustworthy printing supplies to maintain productivity with uninterrupted printing. Because cartridges are designed for exceptional reliability, you avoid wasted supplies & expensive delays. Track cartridge use & reorder easily, with intelligence built into Original HP toner cartridges. Automatic seal removal makes installation quick & easy. Device Types: Laser Printer; Page-Yield: 36,000; Supply Type: Toner Collection Unit; Market Indicator (Cartridge Number): HP 504A.