A1UDR73000,A1UDR71111,A1UDR71100 Developer Unit (OEM) For models: Konica Minolta bizhub 223 Konica Minolta bizhub 283 Konica Minolta bizhub 36 Konica Minolta bizhub 363 Konica Minolta bizhub 42 Konica Minolta bizhub 423