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Lexmark MS312

Lexmark MS312

Cartridge, imaging unit mismatch [41.xy]

  1. Check if both the toner cartridge and imaging unit are Lexmark-authorized MICR (magnetic ink character recognition) supplies or non-MICR supplies.

  2. Change the toner cartridge or imaging unit so that both are Lexmark-authorized MICR supplies or non‑MICR supplies.


  • For a list of supported supplies, see the “Ordering supplies” section of the User's Guide or go to
  • For more information on MICR, go to
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