Konica Minolta Bizhub 4020i 5020 iToner Cartridge TNP78

Genuine toner for Bizhub 4020i and 5020

This genuine Konica Minolta toner cartridge carries the TNP78 designation and is built for the Bizhub 4020i and 5020 multifunction printers. It supplies black toner for everyday document output in offices that rely on those specific models. The cartridge is new and ships as a single unit ready for installation.

Consistent yield across long print runs

Under sustained load the cartridge maintains steady density from the first page to the last without the fade that can appear in short-burst testing. Office environments printing large batches will see uniform coverage across extended jobs. The formulation is matched to the engine calibration of the 4020i and 5020 for reliable throughput.

Direct drop-in replacement with chip recognition

Installation consists of opening the front cover, removing the empty unit and sliding the new cartridge into the same slot until it clicks. The onboard chip is read automatically so the printer updates its supply gauge without manual reset. The only common issue is forgetting to peel the protective seal before insertion, which blocks toner flow.