LD Remanufactured Toner Cartridge Replacement for HP 00A C3900A (Black) 100% Satisfaction & LIFETIME Guarantee For use in LaserJet 4mv & 4v Fast shipping and award-winning customer service The use of remanufactured cartridges and printing supplies does not void your printers warranty Page Yield: 8,100* | Shelf Life: 24-36 Months | *Average cartridge page yield in accordance with ISO IEC 24711