User`s guide

Troubleshooting
Understanding the printer messages
Toner cartridge messages
Cartridge, imaging unit mismatch [41.xy]
‑ On
‑ On
‑ Slowly blinking
‑ Slowly blinking
If the printer control panel light sequence matches the light sequence in the preceding illustration, then do the following:
1 Check if the toner cartridge and imaging unit are both MICR or non-MICR supplies.
Note: For the list of supported supplies, see the “Maintaining the printer” chapter of the User's Guide or visit
http://support.lexmark.com.
2 Change the toner cartridge or imaging unit so that both are MICR or non‑MICR supplies.
Notes:
• Use a MICR toner cartridge and imaging unit for printing checks and other similar documents.
• Use a non-MICR toner cartridge and imaging unit for regular print jobs.
Troubleshooting 108