Works in the following printers: Optra T520, T520, T520D, T520DN, T520N, T520N SBE, T520SBE, T522, T522DN, T522N, X520, X520 MFP, X522, X522S, X522S MFP. LTS Sales! Printer Compatibility: Lexmark XM7155 M7163 M7170 printer series.
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