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BROTHER Error Code DRUM.ERROR

HIGHCommon Issue

Brother DRUM.ERROR: Drum Unit Malfunction or Installation Issue

What This Error Means

The DRUM.ERROR on Brother printers indicates a problem with the drum unit, often related to its installation, wear, or a sensor malfunction.

Detailed Explanation

The drum unit, also known as the imaging unit, is a critical component in laser printers responsible for transferring the toner powder onto the paper. It contains a photosensitive drum that gets charged, exposed to a laser beam to form an image, and then picks up toner. The DRUM.ERROR message typically appears when the printer detects that the drum unit is not installed correctly, is at the end of its life, is damaged, or if there's an issue with the sensor that monitors its presence or rotation. This error prevents the printer from operating because it cannot properly form an image without a functional drum unit. While it often points to the drum unit itself, sometimes the error can be triggered by a dirty sensor or even an issue with the toner cartridge if it's not seated correctly within the drum unit. It's important to address this error promptly, as continued use with a faulty drum can lead to poor print quality or further damage to the printer.

DIY Troubleshooting Steps
Try these steps before calling a specialist
  1. 1

    Turn off the printer and unplug it from the power source.

  2. 2

    Open the front cover of the printer and carefully remove the toner cartridge and drum unit assembly.

  3. 3

    Separate the toner cartridge from the drum unit and inspect both for any visible damage, toner spills, or foreign objects.

  4. 4

    Gently wipe the corona wire inside the drum unit (a thin wire located in a slot, often with a blue or green tab for cleaning) using the provided cleaning tool, if applicable.

  5. 5

    Reinsert the toner cartridge firmly into the drum unit until it clicks into place. Ensure it's seated correctly.

  6. 6

    Reinstall the drum unit and toner cartridge assembly back into the printer, pushing it in until it locks.

  7. 7

    Close the front cover of the printer.

  8. 8

    Plug the printer back in and turn it on. Observe if the error clears.

  9. 9

    If the error persists, try installing a new, genuine Brother drum unit. This is often necessary if the current drum unit is past its estimated lifespan.

  10. 10

    Perform a 'Drum Counter Reset' if you've installed a new drum unit. The specific steps vary by model but usually involve navigating the printer's menu or holding specific buttons while the cover is open.

When to Call a Specialist

You should consider calling a specialist if, after trying all the DIY steps, the DRUM.ERROR message persists, especially after installing a brand new, genuine Brother drum unit. This could indicate a more complex internal issue, such as a faulty drum sensor, a problem with the main board, or mechanical damage within the printer that is preventing the drum unit from being properly recognized or functioning. If you're uncomfortable handling internal components or if the printer shows other unusual symptoms like grinding noises or persistent print quality issues unrelated to the drum, professional assistance is recommended.

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Estimated Repair Cost

$50-$200 (for diagnosis/labor if not a drum unit replacement)

Actual costs may vary based on location and specialist

Commonly Affected Models
  • • Brother HL-L2370DW
  • • Brother MFC-L2710DW
  • • Brother DCP-L2550DW
  • • Brother HL-L5200DW
  • • Brother MFC-L5850DW
Related Error Codes
DRUM END LIFEREPLACE DRUMDRUM UNIT

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