Kyocera TK5280 Original Toner – Black | TK5280BKPage YieldThe Kyocera official site lists the yield for TK5280K (black) as 13,000 pages (A4, 5% coverage)Compatibility (Which Printers Use It)The TK5280K black toner is compatible with several Kyocera ECOSYS / MFP / printer models, particularly:ECOSYS P6235cdn ECOSYS M6235cidn ECOSYS M6635cidn ECOSYS M6235 series / variants