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Printer keeps saying drum error open the front cover slide the blue tab across the drum unit several times.. I've done this and the error is still there. What do I do?

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Posted on Jan 02, 2017

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SOURCE: Getting a Drum Error & asks to slide blue tab

if replacing the drum does not cure the problem, (dont forget the reset procedure, press options with the front door open), the main circuit board will need replacing and dont keep the drum as it could blow the new board as well !!!

Posted on Aug 27, 2010

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SOURCE: Machine says drum error and

This is quite common.

Follow the instructions (like it appears you have), have a look inside the machine for any signs of paper jams, and if that still fails, give the drum a good shake. You can also blow on the metal strip that the blue tab is cleaning.

If all that fails, change the drum.

Posted on Jan 05, 2011

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Description HUM sensor failure Causes 1 Harness connection failure of THM/HUM sensor. 2 THM/HUM sensor failure. 3 Engine PCB failure.

Jan 02, 2015 | Brother MFC-9840CDW Laser Printer

2 Answers

Our Brother HL4040CN is saying "drum error slide the green tab on drum unit in each color" How do you do this

The green tab referred to on the drum unit slides a thin wire across the drum to scrape off any built-up toner that has accumulated.

To do this, first open the door to access the toner/drum cartridges (it's the same door you'd open to replace a spent cartridge). Remove one of the cartridges; the inside of the door will have a sticker illustrating the exact steps to do this. Once you've removed a cartridge, look to the end that is inserted first when installing it (the end opposite the one grasped to remove the cartridge). You should see a small green tab here. Slide it left and right several times to clear away any blockage. For good measure, vigorously shake the cartridge side to side to evenly redistribute the remaining toner evenly inside the cartridge. Replace the cartridge and repeat these steps for each one remaining.

If you still get an error after following these steps, remove each cartridge and shake it extra vigorously for at least 10 seconds. Sometimes the toner can clump inside the cartridge, causing the printer to interpret it as a blockage. This is especially likely to occur if you live in an area with a humid environment.

Jun 14, 2011 | Brother HL-4040CN Laser Printer

1 Answer



1. Grasp the front cover of the printer and pull it toward you to open the toner door. Reach into the printer and grab the combined toner cartridge/drum assembly. Lift up slightly and pull it out of the front of the printer.

2. Place the cartridge and drum on a paper towel, spare sheet of paper, rag or other surface that can get dirty. Loose toner particles may spill from the cartridge.

3. Press the blue locking lever on the cartridge/drum unit to unlock the toner cartridge from the drum. Lift the toner cartridge up and away from the drum unit. Dispose of the old toner cartridge in accordance with your local regulations. Seal it in a plastic bag to keep loose toner from spilling.

4. Gently shake your new toner cartridge back and forth a few times to distribute the toner evenly across the width of the cartridge. Remove the plastic protective cover from the bottom of the cartridge.

5. Place the new toner cartridge onto the drum unit and press it down gently until it locks into place. The blue locking lever will automatically click into place. Verify that the toner cartridge is securely connected to the drum.

6. Locate the corona wire cleaner tab at the front of the drum unit. Slide it back and forth several times to improve the print quality of the drum. Set the tab back in the home position when finished.

7. Slide the combined toner cartridge/drum unit back into the printer and close the front cover.

* Please rate this solution with Thumbs up and Testimony to help us improve providing support

Feb 09, 2011 | Brother HL-2040 Laser Printer

1 Answer

The printer says drum error,slide the blue tab from side to side,when I have done this the printer works but the repeats the error sign again.

Same problem-
1st- take out drum & toner assembley- with open door - press OPTIONS - then #1 - reinsert
if continues
2nd - I sprayed canned air on the drum wire assemble (where our favorite 'blue' tab slides) the toner builds up; then I gentle wiped the drum in a horizontal direction while manually turning the drum several times.
I reinstalled and like new...

Nov 24, 2010 | Office Equipment & Supplies

3 Answers

My brother MFC9840cdw has an error message that says, "drum error, slide the green tab on each of the colored drum units. Refer to the users guide". I have tried sliding the green sliders several times. I...

The guy that replied solved the problem. He rocks and I can't believe that brother does have a large posting on this issue. Sham on them:
ben2913 did the job "This is NOT the solution to this error code. The code is telling you that the Corona wire must be cleaned. Remove all 4 color drums. Look down into the tray that you removed them from and you will see 4 green tabs. Open the plastic cover that protects the corona wire and move the green tab back and forth several times. After you have done this with all 4, reinstall the drums, close the machine front and everything will work fine again."

Feb 25, 2010 | Brother MFC-9840CDW Laser Printer

1 Answer

I'm getting drum error message, it says move blue tab back and forth, I don't what the drum is and I don't see blue tabs

Open your document feeder cover (it pivots away from you), then open the forward top cover (it pivots towards you). Inside the machine is the drum / toner unit, remove it. On top of this assembly is the blue tab (plastic handle) either on the left or right side. Slide that tab back and forth ~ 4 or 5 times. Reinstall the drum / toner unit. Close the top cover, then the document feeder cover. Done...

Dec 18, 2009 | Brother IntelliFax-2820 Laser Fax

3 Answers

Brother 4070 CDW Drum Unit Error

The green tabs that you have to slide are under the color cartridges, so remove the three color cartridges and you will see three green tabs, to slide the tab across the wire you have to first open the translucent plastic wire cover, then slide the green tab across the wires and return it to it's original position, close the wire covers, replace the color cartridges, and reassemble the printer. All the Best

Jun 11, 2009 | Brother HL-4070CDW Printer

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

2 Answers

Brother Printer MFC-7420

Open the front cover and take out the toner/drum unit. On the top of the drum unit you will see a blut tab that you can slide side to side. Do this 10+ times and this should fix your issue. Make sure to put the blue tab back in the original start position which is believe is to the left on that model.

Sep 06, 2008 | Brother MFC 7420 All-In-One Laser Printer

3 Answers

Toner/drum problems

This seems to happen some of the time. Brother has an FAQ for this:

1. Verify the toner cartridge is installed correctly by following the
steps listed below:

a. Open the front cover.

b. Lift the drum unit slightly and pull it out. Place the drum unit on
adrop cloth or large piece of disposable paper to avoid spilling and
scattering the toner.

c. Remove the toner cartridge from the drum by holding down the lock
lever (blue tab) on the left side of the drum unit and lift the toner
*Handle the toner cartridge carefully. If toner scatters on your hands
or clothes, immediately wash it off with cold water.

d. Gently rock the toner cartridge from side to side five or six times
to distribute the toner evenly inside the cartridge.

e. Place the toner cartridge into the drum (be sure it clicks into

f. Clean the primary corona wire inside the drum unit by gently sliding
the blue tab on the top of the cartridge from right to left several
times. Return the blue tab to the home position before reinstalling the
drum unit assembly.

g. Reseat the drum unit into the machine.

h. Close the front cover.

2. If the message "Toner Life End" continues to appear on the display,
contact Brother Customer Service at 1-877-Brother (276-8437) Monday
through Friday, 9:00am - 7:00pm EST, excluding holidays.

May 12, 2008 | Brother MFC 7420 All-In-One Laser Printer

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