Remanufactured toner cartridge delivers optimum text and graphics print quality in your Hewlett-Packard LaserJet 4240N, 4250, 4250DTN, 4250DTNSL, 4250N, 4250TN, 4350DTN, 4350DTNSL, 4350N and 4350TN. Proprietary automated equipment and ASTM testing methods ensure superior performance from each and every cartridge produced. State-of-the-art, automated filling equipment ensures precise fill weights for each cartridge. Independent testing has verified that this cartridge functions fully until end-of-life while yielding the same or more pages than OEM cartridges. Cartridge yields approximately 10,000 pages.