error-e-6MFC-EX670

Brother MFC-EX670 Error E-6: Cover Jam

The Brother MFC-EX670 error E-6 signifies that the device detects a cover is open or a security interlock is not engaged. For safety reasons, the printer locks all mechanical movement until the seal is confirmed. To fix the Brother MFC-EX670 error E-6, ensure all covers are closed firmly and free from obstructions.

1 views

Common causes

  • 1Main cover not fully closed or seated.
  • 2Paper remnants blocking sensor contacts.
  • 3Dust buildup on magnetic sensors.
  • 4Door security switch failure.

Solutions

Quick Diagnosis

If you recently opened the cover to replace cartridges, it likely didn't seat correctly. If it is closed, dust may be obscuring the sensor.

Step-by-step Solution

  1. Readjust: Open and firmly close all printer covers.
  2. Inspect: Ensure no paper is sticking out, blocking the latch.
  3. Clean: Wipe magnetic contact points with a dry cloth.
  4. Reset: Turn the unit off for 10 seconds and power back on.

Prevention and Maintenance

Avoid slamming covers to protect plastic latches. Keep the sensor area free of accumulated dust.

When to Call a Technician

If the error E-6 persists after verifying all closures, the door switch or sensor may be faulty and need replacement.

Technical Specifications

  • Technology: INKvestment Tank
  • Speed: High Efficiency
  • Connectivity: Wi-Fi / USB
  • Consumable: LC400 series cartridges
  • Recommended Use: Home and Small Business
  • Official Drivers / firmware

Steps to follow

  1. 1

    Check Cover

    Open and close the main cover firmly.

  2. 2

    Clean Sensors

    Wipe dust off magnetic closure sensors.

  3. 3

    Restart

    Turn off the device to clear the error status.

Frequently asked questions

E-6 indicates the cover sensor does not detect the lock, preventing operation for safety reasons.

Almost never; it is a physical fault in plastic closures or dirt on the magnetic sensor.

Keeping plastic surfaces clean prevents buildup that prevents full closure.

It is a minor error resolved by ensuring all covers are properly seated.