One HP Q7551A (51A) black Toner Cartridge Compatible with LaserJet P3005/M3035 mfp.Page Yield is 6,500 pages at 5% coverage. Not all color cartridges are created equal. With our proprietary components and multiple Patented Technologies, MSE is able to manufacture the highest quality replacement color toner cartridges in the market. MSE"s patented doctor Blade positioning ensures uniform distribution of toner and optimal charging characteristics. MSE"s patented secondary cleaning system addresses historical streaking and PCR additive build up issues and improves overall print quality and cartridge cleanliness. MSE product is all USA made! MSE"s 4,000-square-foot machine shop located in our Van Nuys, California manufacturing facility works hand-in-hand with our production engineers to streamline manufacturing processes and to minimize human error through automation and innovation. MSE has designed and manufactured more than 400 custom fixtures, machines and tools to produce superior products right here in the USA.Supporting local jobs(Largest re-manufacturer in USA)approximately 1000 employees located in VanNuys, California.MSE Brand Imaging Supplies are environmentally friendly. MSE conserves nature"s resources by reusing certain non-wearing plastic shells and metal components from spent OEM cartridges.MSE is proud to manufacture more than 200,000 environmentally-conscious toner cartridges every month and all scrap metals, plastics, paper and cardboard are locally recycled into everyday consumer items.