HP® 78A Black LaserJet Toner Cartridge (CE278A) - $96.99
78A Black Toner Cartridges Compatible for HP 78A CE278A for HP LaserJet M1536dnf MFP P1606dn P1606 P1566 P1560 M1536 CE278D Printer Ink (2-Pack) - Walmart.com
HP CE278A Black Laser Toner Cartridge | ColorTonerExpert