Brother TN420 / TN450 LED Error

  • Hi 123, i recently used the compatible Brother TN450 toner cartridge, but shows LED error, do you have any tips to remove it?

  • Toner Error LED Does Not Reset After Replacing TN420/TN450 Toner Cartridge on HL Series Printers

    The reset gear on the toner cartridge did not properly contact and reset the New Toner Sensor within
    the printer. The reset gear will operate only once after the toner cartridge is installed and the position
    of the gear cannot be reset after installation. To reset the Toner Error LED a manual reset procedure
    must be performed.

    Please verify the following before attempting a manual reset of the Toner Error LED
    • The toner ink cartridge was not a previously used toner in a printer
    • The toner cartridge is not a “starter toner cartridge”
    • The printer has the latest firmware update

    The following steps will need to be perform to manually reset the Toner error LED

    1. Turn off power to the printer
    2. Open the front cover to the toner/drum section of the printer
    3. Press and hold the “Go” button while turning on power to the printer
    4. Release the “Go” button after “Toner, Drum, Error” LEDs turn on with the “Ready”
      LED turn off. “All LEDs will now be OFF”
    5. Press the “Go” button 2 times – “The Toner, Drum and Error LEDs will turn ON”
    6. Press the “Go” button 6 times for a TN420 or Press the “Go” button 7 times for TN450
    7. Close the front cover after Error LED starts to flash
    8. The reset procedure has been completed

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