TN-420 450 Toner Reset Instruction

 

Description:

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 Life Display, a manual reset procedure must be performed. 

Solution:

The following steps will need to be performed to manually reset the toner life.

Brother DCP/MFC Series

1. Open the front cover to the toner/drum section of the printer.

2. Press the Clear/Back button and the following message should appear in the LCD display “Replace Drum? 1. Yes 2. No”

3. RESET THE COUNTER IN THE FOLLOWING PROCEDURE BY PRINTER MODEL AND TONER TYPE.

MFC models with numeric keypads
TN420 standard toner: Press the *, 1 and 1 button in this order
TN450 high yield toner: Press the *, 1 and 2 button in this order
Unknown Toner Type: Press the *, 0 and 0 button in this order

DCP models without numeric keypads
TN420 standard toner: Press the “Start” button, and press “arrow up” or “arrow down” button to display “11” on the LCD display. Then press the “OK” button.
TN450 high yield toner: Press the “Start” button, and press “arrow up” or “arrow down” button to display “12” on the LCD display. Then press the “OK” button.
Unknown Toner Type: Press the “Start” button, and press “arrow up” or “arrow down” button to display “00” on the LCD display. Then press the “OK” button.

The message “Accepted” should be appear on the LCD display.

4. After 2 seconds, “Cover Open” will appear on the LCD display.

5. Close the front cover and the operation is now completed.

Brother HL Series

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, and 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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