31.01MS317dn

Fix Lexmark MS317dn Error 31.01: Imaging Unit Failure

Error 31.01 on the Lexmark MS317dn points to a communication failure within the imaging unit. This occurs when the printer fails to detect the installed drum or toner cartridge correctly. Prompt resolution ensures the printer's delicate optical sensors remain calibrated.

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Common causes

  • 1Imaging unit has reached its defined end-of-life cycle.
  • 2Dirty or oxidized electrical contacts on the imaging unit.
  • 3Physical obstruction preventing proper cartridge seating.

Solutions

Reseating the Imaging Unit

  1. Power off the device and unplug the power cord.
  2. Open the front cover and remove the toner and imaging unit assembly.
  3. Check for any debris on the electrical contact pins.
  4. Reinsert the assembly until it clicks firmly into place.

Toner Inspection

  1. Detach the toner cartridge from the imaging unit.
  2. Clean the roller surface gently with a dry, lint-free cloth.
  3. Reassemble and restart the printer.

Steps to follow

  1. 1

    Power Cycle

    Disconnect the unit from power for at least 30 seconds.

  2. 2

    Physical Inspection

    Pull out the imaging kit and inspect for foreign objects.

  3. 3

    Calibration

    Power on the unit and allow it to cycle automatically.

Frequently asked questions

Usually, it's a connection issue, but if cleaning fails, the chip on the unit might be faulty.

No, never apply excessive force as you could break the mounting brackets.

Only clean them if an error occurs to avoid damaging the sensitive conductive pins.