HP 78A Black Original LaserJet Toner Cartridge. Black toner page yield: 2100 pages, Printing colours: Black, Quantity per pack: 1 pc(s)Compatible Printers: HP LaserJet Pro P 1604, HP LaserJet Professional P 1500 Series, HP LaserJet Pro P 1567, HP LaserJet Pro M 1500 Series, HP LaserJet Pro P 1606 n, HP LaserJet Pro P 1603, HP LaserJet P 1608 DN, HP LaserJet Pro P 1602, HP LaserJet Pro P 1600 Series, HP LaserJet Professional P 1606 n, HP LaserJet P 1566, HP LaserJet Professional P 1567, HP LaserJet P 1609 DN, HP LaserJet P 1568, HP LaserJet Pro M 1537 dnf MFP, HP LaserJet Pro P 1569, HP LaserJet Pro P 1568, HP LaserJet P 1604, HP LaserJet Professional P 1609 dn, HP LaserJet P 1605, HP LaserJet P 1569, HP LaserJet P 1603, HP LaserJet Professional P 1608 dn, HP LaserJet Pro M 1538 dnf MFP, HP LaserJet Professional P 1606 dn, HP LaserJet Professional P 1607 dn, HP LaserJet Pro P 1609 dn,…