HP 42X High Yield Toner Cartridge - Black (Q5942X) Compatible UB-T-Q6511X Laser
Yield: Up to 12,000 pages . Page yield is approximate and based on standard industry testing. Exact product colour may vary depending on your device's display settings. HP LaserJet: 2420, 2420d, 2420dn, 2420n, 2430, 2430dtn, 2430n, 2430tn.