Page Yield: 12,000** Yields are based on a 5% area coverage Compatible Hardware: LaserJet 5500, 5550 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 Verbatim offers one of the most comprehensive lines of premium quality laser cartridges for today's most popular printers. Utilizing Mitsubishi technology,Verbatim OEM (Original Equipment Manufacturer) replacement cartridges feature a matched system of toner and components that are designed to work flawlessly together. Our color compatible laser cartridges use genuine polymerized (chemical) toner, just like OEM cartridges. Polymerization yields a tighter particle distribution with a small, consistent, spherical shape, which improves print resolution, increases toner yield, and decreases the cost per page. Every cartridge is backed by a Limited Lifetime Warranty. And, if one of our cartridges damages your printer, we will reimburse you for the cost of the repair.