HP Laserjet Black Print Cartridge. For use in LaserJet Pro M1536 dnf, P1566 and P1606dn printers. Approximate page yield: 2,100. OEM: CE278A Installing a genuine HP 78A LaserJet Toner Cartridge (CE278A) ensures exceptional quality and reliability from your HP LaserJet printer. This cartridge uses high quality toner that gives you crisp text and detailed monochrome images across a range of applications, including letters, presentations and brochures. Because it's a genuine HP cartridge, it ensures unbeatable reliability and efficiency - giving you fast, trouble-free print operations.