High-quality toner cartridge is made with 100 percent new parts and designed as closely as possible to the original while respecting the various design patents held by OEMs. It is designed for use in HP LaserJet 4240, 4240n, 4250, 4250dtn, 4250dtnsl, 4250n, 4250tn, 4350, 4350dtn, 4350dtnsl, 4350n and 4350tn. Toner cartridge delivers consistent performance and brilliant print quality. The durable toner excels in multiple applications from labels to documents. Premium cartridge yields approximately 10,000 pages. It is produced in an STMC compliant/ISO-9001 certified facility.