Lexmark T640 35PPM Laser PrintersLexmark T640 dn 35PPM Laser PrintersLexmark T640 dtn 35PPM Laser PrintersLexmark T640 n 35PPM Laser PrintersLexmark T640 tn 35PPM Laser PrintersLexmark T642 45PPM Laser PrintersLexmark T642 dn 45PPM Laser PrintersLexmark T642 dtn 45PPM Laser PrintersLexmark T642 n 45PPM Laser PrintersLexmark T642 tn 45PPM Laser PrintersLexmark T644 50PPM Laser PrintersLexmark T644 dn 50PPM Laser PrintersLexmark T644 dtn 50PPM Laser PrintersLexmark T644 n 50PPM Laser PrintersLexmark T644 tn 50PPM Laser PrintersLexmark X642 e 45PPM MFP Laser PrintersLexmark X644 e MFP 50PPM Laser PrintersLexmark X644 ef MFP 50PPM Laser PrintersLexmark X646 dte MFP 50PPM Laser PrintersLexmark X646 e MFP 50PPM Laser Printers