Genuine OEM HP Color LaserJet CM4540 Toners

The Color LaserJet CM4540 uses standard-yield HP 647A black toner. High-yield HP 646X black prints more pages between changes, while the color supplies stay HP 646A. The mixed 646X/646A toner set therefore combines higher-capacity black with the same three color cartridges.

Toner Buzz carries genuine HP 647A and 646X black singles, 646A individual colors, and the mixed four-color set for the CM4540. Choose black capacity for your printing volume, or the mixed set when black and all three colors belong in the order. Fuser, transfer, and toner-collection parts are separate from the toner set.