For models: MX-4110N, MX-4111N, MX-4140N, MX-4141N, MX-5110N, MX-5111N, MX-5140N, MX-5141N
Average cartridge yield: 40,000 approximate pages based on 5% coverage (actual yield depends on specific use including images printed, printer, print settings and other factors)
MFG Part Numbers: MX-51NTBA, 051NTBA, MX51NTBA