ORIGINAL OEM DEVELOPER MADE BY KONICA MINOLTA OEM #:Konica/Minolta/QMS: DV511 DV 511 DV-511 Description: DEVELOPER BLACK OEM OEM #: Konica/Minolta/QMS: 024G, DV511 Models: Konica/Minolta/QMS: BIZHUB 420, BIZHUB 360, BIZHUB 500