Brother MFC 7840W Printer Logo
Posted on Jan 05, 2011

I have this model printer (brother mfc-7840W) and i'm getting an error on the screen-it says Drum Error. See troubelshooting and maintenance chapter in the user manual

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  • Contributor 3 Answers
  • Posted on Feb 18, 2011
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If you have the manual follow the steps for trouble shooting.
It will tell you to remove the drum, remove toner, clean corona wire and reinstall. If that does not solve the issue it will recomend replacing the drum. You can check your drum life by going to menu- press machine info, choose option 3 drum life and press ok. This will show you the remaining percentage of your drum if the number shows less than 25% replace the unit.
If it shows more than 50% you can reset the drum counter allowing the machine to read it as a new unit.( Bare in mind this will change the usage meter back to 100%, you will have to keep an eye out for print defects or light pages as this will signal the end of the drum life) to reset page counter remove the drum from the machine, with the front door open press Clear/back until the lcd displays reset drum yes? no? press 1 for yes and reinstall drum. The machine will cycle until ready; if this still has not cleared the message you will need to contact brother for a manual reset or service.

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Related Questions:

0helpful
1answer

Drum error:

What is the drum error?
tip

How to extend the life of a TN-330 drum kit for MFC-7840W Wireless Printer

If you have received any of the following messages on your Brother MFC-7840W wireless multifunction printer while utilizing the TN-330 drum kit then you may not have to replace your drum, at least not yet.

Drum End Soon
Drum Error
Toner Life End
Toner Low

I had this issue happen to me about 150 pages ago (some text, some pictures) and I still haven't replaced my drum after I executed this little trick.

Take your drum kit out of your printer (make sure you turn off and unplug any cables first)

Take some black electrical tape and cut a inch by inch square off.

Place the black tape over the optical port as shown in the picture below.


032b29e.jpg
Then put the drum back into the printer, cable everything back up and turn the power on.

Your drum should last a long time beyond what was supposed to be a low toner.

Hopes this saves you some money.
1helpful
1answer

I have an mfc 7840w brother printer and changed the drum unit and I am still getting a drum error message

Maybe you left part of the seal or a piece of tape on the toner unit. The actual drum should look green, and it should be perfectly smooth (no dents)
21helpful
1answer

Mfc-7840 brother printer is saying drum error and will not print anything

You need to replace the drum unit,the drum unit is the case in which lies the toner.Try to reset the drum unit like that:

1.the printer is online
2.open the cover
3.push a button clear or check on the panel with the cover open and then push reset drum

If i have been useful please give me a vote :).Thanks
68helpful
1answer

Drum error message

To reset MFC-7840W drum count use the following steps.

1. open the front cover (leave open).
2. Press clear/back.
3. Then confirm the new drum install by pressing 1.
4. The display will indicate accepted.
5. Then close the front cover.

This should be done each time the drum unit is replaced.
2helpful
1answer

My brother mfc-7840w printer keeps telling saying there is a drum error and will not print. i clean the corona wire and reset everything yet the same thing happens again and again. how do i fix this?

The drum is the photosensitive roller that the image is charged onto so I'm afraid cleaning the corona wire won't help. If the drum is removeable try reseating it, otherwise it looks like you may need to buy a new drum kit for it.
12helpful
1answer

Drum Error on Brother MFC 7840W

Has two situations:
  1. The corona wire on the drum unit needs to be cleaned.Clean the corona wire on the drum unit.
  2. The drum unit has reached the end of its life. Replace the drum unit.
10helpful
1answer

Drum error

With that error you need to remove the drum, run the little blue tab on top back and forth about 20 times, blow out the area below the blue tab, and re install and try printing again. If the error is drum life end you need to open the front door and press either menu or options, sometimes the clear/back button and tell it it's a new drum.
12helpful
2answers

How do you reset a Brother MFC-7840W printer to factory default settings?

Menu * 2864 (within 2 sec.), 0,1, when 'maintenance' appears, press 0,9 to exit.
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