HP OEM HP 4730 Duplex Assembly;Compatibility:HP Color LaserJet 4730,HP Color LaserJet 4730 MFP,HP Color LaserJet 4730X,HP Color LaserJet 4730X MFP,HP Color LaserJet 4730XM,HP Color LaserJet 4730XM MFP,HP Color LaserJet 4730XS,HP Color LaserJet 4730XS MFP;HP 4730 Duplex Assembly;HP, RM1-2112-120, RM1-2112, HP 4730 Duplex Assembly, Accessory;Brand: HP