34.01B2338dw

Lexmark B2338dw error 34.01: Toner Not Recognized

The Lexmark B2338dw error 34.01 indicates a communication failure between the printer and the toner chip. This prevents the unit from tracking supply levels or verifying cartridge authenticity. It is a common issue typically caused by loose installation or dirty contact points.

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Common causes

  • 1Toner chip residue
  • 2Dirty or bent printer pin connector
  • 3Cartridge not properly seated
  • 4Factory-defective toner chip

Solutions

Quick Diagnosis

If your printer reports 34.01 after a new installation, the chip is failing to make an electrical connection with the printer's receiver board.

Step-by-step Solution

  1. Remove toner: Access the internal compartment via the front panel.
  2. Clean contacts: Use a clean, dry cloth to wipe any residue off the gold chip.
  3. Reinsert: Ensure the cartridge is seated correctly until you hear a click.

Prevention and Maintenance

Never touch the gold chip contacts with your fingers. Regularly clean the printer's interior with compressed air.

When to call a technician

If the error persists after cleaning and testing a known good cartridge, the printer's contact board may be faulty.

Technical Specifications

Steps to follow

  1. 1

    Remove toner

    Open the front cover and remove the toner cartridge.

  2. 2

    Clean contacts

    Gently clean the gold contact chips with a dry cloth.

  3. 3

    Reinsert

    Push the cartridge back in until it clicks firmly into place.

Frequently asked questions

This error occurs when the printer fails to communicate with the toner cartridge's smart chip.

Not necessarily; often it is just an electrical contact issue.

Original Lexmark supplies are recommended for this model.

Avoid touching the gold contacts on the chip during installation.