Compatible CF031A (HP 646A) Cyan Laser Toner Cartridge fully compatible with the HP Color LaserJet CM4540 MFP. The use of compatible supplies does not void your printer warranty.
Compatible CF032A (HP 646A) Yellow Laser Toner Cartridge fully compatible with the HP Color LaserJet CM4540 MFP. The use of compatible supplies does not void your printer warranty.
Compatible CF033A (HP 646A) Magenta Laser Toner Cartridge fully compatible with the HP Color LaserJet CM4540 MFP. The use of compatible supplies does not void your printer warranty.