Amazon.com: Uniwork Compatible Toner Cartridge Replacement for HP 78A CE278A Compatible with Laserjet Pro P1606dn, M1536dnf, P1566, P1560, P1606, M1536 Printer Tray (2 Black) : Office Products
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 78A (CE278A) Black Toner Cartridge BEST Fit for HP Printers