Okidata COMPATIBLE TONER BLACK FOR C5540 5540MFP Okidata Part #: 42127404 Part Number: 42127404 HIGH CAPACITY BLACK BRAND NEW (NOT REMANUFACTURED) TONER cartridge Page Yield : 5,000 page @ 5% coverage Compatible with these machines: Okidata C5540, Okidata C5540n, Okidata C5540tn, Okidata C5540n 5540MFP