Genuine OEM Konica Minolta bizhub 421 Toners

A black supply message on the bizhub 421 can refer to TN511 toner or the DV511 developer. If toner is due, there are two item codes to distinguish: 024E and 024B.

Toner Buzz carries genuine Konica Minolta TN511 toner in both listed codes, along with the 024G DV511 developer. Start with the part type shown by the machine, then match the exact code.