Question about Brother MFC-9840CDW Laser Printer

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What does "Drum Error" mean on Brother MFC9840cdw? And how do I fix?

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: my brother MFC9840cdw has an error message that

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."

Posted on Aug 18, 2011

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komguy
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SOURCE: my brother MFC9840cdw has an error message that

Look on the right side of each drum unit, there's a gear on each and each has a number that needs to align on the top with the marks make sure all drum gears are in synch.

Posted on Feb 25, 2010

fawazkhalil0
  • 5 Answers

SOURCE: i have brother dcp-7030 got an drum error even if ...

error code EC

Posted on Jan 28, 2011

SOURCE: Brother laser printer MFC9840CDW prints

Hi, well this is a problem with the transfer drum/corona wire you see what's happening is that the entire page is being covered in the "ink" and it's meant to "Fuse" to the paper where it has been sensitized via the laser, however in your case the wire is also "Setting" a fine covering over the entire surface. Somehow the entire page is also being sensitized, via the corona wire?, that transfers the charge to the paper, the image then made via the laser and set by passing over the heater. in your case both the image and the printing surface are being charged somehow... and then both surfaces react with the printing process.

You need to clean the machine so it is like a sterile area too, any loose particulate in the machine will add to the problems too. Also i believe you need to change the corona wire too.. and or the driver board for said corona wire, it, they may be faulty?


http://www.scribd.com/doc/15024880/mfc9840cdwservice-man


Please find a link for your service and repair manual above, have a look in there and use the troubleshooting steps, that may point you in the right direction.

Posted on Apr 23, 2011

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1 Answer

My MFC9840cdw quit printing or copying. The page is completely blank.


Probably the high voltage power supply is bad. This is what charges the transfer roller which allows the toner to cling to the roller and then transfer to the paper. No charge = no toner leaving the toner cartridge.

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This error is about empty toner.
Get it fixed.

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Brother Mfc9840cdw (except for fax send) has been very good. During print job (2nd computer sent job during print from 1st computer), red light suddenly came on. everything stopped. No sign of a jam. No...


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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

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BROTHER DCP 8040 MULTIFUNCTION HAS AN ERROR MESSAGE: 7A. How do I fix it?


This error means that the Main motor is not synchronising with the reference clock.

This can be caused by several things...

  1. Could be a faulty motor.
  2. A faulty Engine Circuit Boaard.
  3. Fault on the Main PCB.
  4. A siezed Drum unit.
  5. Something seized up in the drive train.
Try to get it to start up with the Drum unit removed, if it does the initial rotations OK with no Drum unit installed, then try a new Drum unit.

Failing that, you will need to dismantle and inspect all the drive train and motor assemblies.

Good luck.

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I have a Brother 2170w with all lights flashing. Turning on and off does not fix problem. Help!


This is in reference to another solution on this site--please search before posting as others have already solved this problem:

Per http://www.fixya.com/support/t2462964-all_3_error_lights_flashing_4_count_go


When all lights flash it's a service problem. You press and hold the go button and see what lights are on then.error light means main PCB failure, Toner light means fuser failure, drum light means laser failure. Toner and error light means main motor error, drum plus error light means its a fan failure.

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All 3 Error lights are flashing (4 if you count the GO button)!!


When all lights flash it's a service problem. You press and hold the go button and see what lights are on then.error light means main PCB failure, Toner light means fuser failure, drum light means laser failure. Toner and error light means main motor error, drum plus error light means its a fan failure.

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