Replaces the Following Manufacturer Numbers: Okidata 42127404, Okidata 42804504. Compatible with the Following Printer Models: Okidata C5100N, Okidata C510DN, Okidata C5150N, Okidata C5200N, Okidata C5250, Okidata C5300N, Okidata C5400, Okidata C5400DN,Okidata C5400DTN, Okidata C5400N, Okidata C5400TN, Okidata C5450, Okidata C5510MFP, Okidata ES1624N MFP.