Compatible with the HP LaserJet Pro M1536 and P1606 printers. Find the full list of the compatible printer below. “Works as well as the original at a much more reasonable price.” This is a standard black toner cartridge that replaces the standard HP 78A cartridge. Prints at least 2,100 pages. Some customers are able to print up to 3,000 pages! Saves you a great deal of money compared to an original HP 78A toner cartridge. Consistent print performance every time you print! Enjoy documents with rich blacks and precise lines and text. Easy to install and replace. What Printers use the HP 78A TonerThis cartridge is compatible with the HP LaserJet Pro M1536dnf, M1537dnf, M1538dnf, M1539dnf, P1566, and P1606d printers. Prints up to 2,100 pages. Installs and fits just like an original HP CE278A toner cartridge.