Genuine OEM HP LaserJet Enterprise MFP M631z Toners

HP 37-series toner for the LaserJet Enterprise MFP M631z comes in standard-yield 37A and high-yield 37X capacities. The 37X prints more pages per cartridge. The maintenance kit services the separate fuser, the part that bonds toner to paper.

Toner Buzz carries genuine HP 37A and 37X black cartridges and the J8J87A 110/120-volt fuser maintenance kit for the M631z. Choose 37A for lighter use or 37X for frequent printing, and match the maintenance kit's voltage to your printer when ordering it.