Do it Wiser Compatible Konica Minolta Bizhub C250 C252 Toner (8938-509) - Black 20,000 Pages Estimated page yield: 20,000 pages (depends on printer and usage) Compatible with Part Number: 8938-509 | TN210K Compatible with printer models: Konica Minolta Bizhub C250 and Konica Minolta Bizhub C252 Our Do it Wiser Smart toner cartridges are covered by a 1 year warranty against defects Cartridges certified to work | ISO 9001 quality assurance | ISO 14001 environmental management | RoHS Lead Free