Question about Brother MFC 7420 All-In-One Laser Printer

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When I change the toner, the LCD shows "back cover is open, please close the back cover" where is the back cover?

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The back cover is located on the back of the printer at the bottom. You can find it by looking for two tabs on the right and left that if pushed will allow you to open a paper guide that has two white wheels on it. Open this guide and then close it again so that the system understands that it is closed. That should solve your problem.

Posted on Sep 08, 2010

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1 Answer

I just installed a new drum and toner cartrideg last week and the error message says drum is near end. Should the toner cartride be replaced?


Hi there,

After replacing the drum and toner you may need to reset the drum life of the machine. This is how to reset the drum life:
Open the front cover where the drum and toner are located. Press the clear/back key. Lcd should show Replace Drum? Then press 1 for yes. Lcd should show accepted. Close the front cover the press stop/exit. Lcd now should show the date and time.
Hope this helps. Rate if it works. Thanks

May 02, 2011 | Brother MFC-8460N Laser Printer

1 Answer

What does it mean when it says Drum near end


Order a new drum, part number DR520, from an office supply store or Brother (http://welcome.solutions.brother.com/bsc/public_s/id/us/us/en/monolasermfc/mfc8460n_all/c_o/index.html?reg=us&c=us&lang=en&prod=mfc8460n_all&cao=dr ). The drum transfers the toner onto the paper and has a finite lifetime - approx. 25000 pages (1 page/job). Change the drum when the print quality decreases or the message changes to replace drum or drum end.
To replace, open the front cover and remove the drum and toner cartridge assembly (wait until the machine cools if it has been printing). Avoid the electrodes on the assembly. Hold down the lock lever and take the toner cartridge out of the drum unit. Unpack the new drum and put the toner cartridge in the new drum (when it is locked the lever should lift automatically). Place the assembly back in the all-in-one. Do not close the front cover. Press Clear/Back on the control panel. The LCD should ask "Replace Drum?". Use the up/down arrows to select 1. Yes and hit OK. When the LCD shows "Accepted", close the cover.

I hope this helps.

Cindy Wells

Jun 03, 2010 | Brother MFC-3320CN Plain Paper Inkjet Fax

1 Answer

How do you reset the toner low LCD message when you change toner cartridge?


I believe you mean, DRUM Reset.

  1. Open the front cover.
  2. Press the Options key on the control panel.
    The display will show "REPLACE DRUM - 1.YES 2.NO".
  3. Press 1 to reset the drum count.
  4. Close the front cover.

Jan 12, 2010 | Brother MFC-7820N Printer

1 Answer

Had toner life end message. Replaced toner and drum with oem,machine reset but now just making blank copies. Tried to print internal report that's blank too


To reset the sensor after installing a new toner cartridge follow these steps.
1. With unit powered On, open the front cover.
2. Press the "Options" key. Display will show "Replace Drum?"
3. Press "Start" key.
4. Press 1,0 .
5. Display will show "Accepted" for approximately 2 seconds. Then display will change to "Cover Open".
6. Close cover and see if Toner Life End error message has gone.
Please note that this must be done with a new cartridge so the unit will see that there is toner in the cartridge.

Aug 01, 2009 | Brother IntelliFax-2820 Laser Fax

1 Answer

Sir i have brotherfaxprinter i refilled the cattriage but the printer was showing this option remove the door and replace the toner toner life over please the reply soon


If this doesn't work please let me know exaclty what model you have.

Open the front cover of the machine, press clear/back or options, the lcd should display change drum? press *00, close the front cover

Jun 11, 2009 | HP 645A Magenta Toner Cartridge (C9733A)...

3 Answers

Replaced Drum still says "Replace Drum Soon". How do I reset on a Brother 7420?


Reinstall the new drum unit, keeping the front cover open. Press OPTIONS. Press 1 when the display shows REPLACE DRUM? 1.YES 2.NO ACCEPTED. Close the front cover.

May 28, 2009 | Brother MFC 7420 All-In-One Laser Printer

1 Answer

On lcd massage


some times the nipple (cover) of the toner stays in the toner holder this wont allow the new one to be opened

Sep 22, 2008 | Ricoh Aficio 1022 All-In-One Laser Printer

1 Answer

Toner cartiage and drum replacement


Go to menu to reset drum settings. I think you leave the front cover open press the right arrow then 1 one the lcd shows replace drum then after the lcd says accepted close the front cover.

Dec 18, 2007 | Brother MFC 9700 All-In-One Laser Printer

2 Answers

Fax machine 2820


Make sure that you are not using generic supplies. Using generic supplies or supplies that have been refilled will cause the unit to give false errors. There is white piece of plastic inside the semi circular opening, if you do not see a white semi circular opening it is either a generic toner or starter toner and you will need to replace the toner with a authentic toner. You may try this also: 1. Remove the drum and toner, separate the drum and toner and then rock the toner from side to side. 2 Put the drum and toner back together and clean the corona wire ten times. 3 Put the drum and toner back inside the machine and close the cover, if you still have toner life end try this: a Open the front cover b press the options key, the LCD will say "replace drum?" c press the start key. and then press 10 on your dial pad. the display should say accepted for about 2 seconds and then say cover open. d close the cover, if the display still has toner life end, you will need to replace the toner

Oct 03, 2007 | Brother IntelliFax-2820 Laser Fax

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