Question about Brother MFC 7840W Printer

1 Answer

MFC-7840W Printer Brother, we have replaced the toner many times and the printer always shows the message on its screen: low toner, and after that shows: toner life end, what we can do, because this is the second printer we buy and we still have the same problem

Posted by Anonymous on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Novelist:

    An expert who has written 50 answers of more than 400 characters.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 129 Answers

Open the front cover. Remove the drum and toner. Remove the toner from the drum by pressing and holding the green/blue tab on the right side then lift the toner out. Shake the toner side to side for 6 times, and on the drum unit slide the blue/green tab on the far left side from left to right for 6 times also. reinstall the toner back to the drum unit. reinstall drum and toner back to the machine. Close the front cover. The display should show the date and time.
Hope this will help.

Posted on Mar 28, 2011

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How do you reset counter on Toner for TN-360


No, If you use a refill in your recent toner cartridge you need to reset the toner, if you use a new toner cartridge, no need to reset.

Aug 28, 2014 | Brother MFC 7840W Printer

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.

on May 19, 2010 | Brother MFC 7840W Printer

1 Answer

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)

Jul 05, 2012 | Brother MFC 7840W Printer

2 Answers

I replaced the toner for brother MFC 7860DW and still getting replace toner message. I cannot print. Please help. thanks


1. lift lid and open front cover

2. press clear/back. "Replace Drum?" will appear on the screen.

3. Press "*00" it will then read accepted and the toner low error (End
of Toner Life) should go away.

4. close it all up and your done.

Oct 17, 2011 | Brother MFC 7840W Printer

1 Answer

Printer gives warning that toner life is gone. I replace the toner twice . Each time it prints one page and then gives error message. Page that did print out has dark horizonal lines.


Check the toner cartridge, side gears, you can see a reset lever (that lever is very important) show in the next picture.(cartridge new)

guilopmar.jpg

Jun 28, 2011 | Brother MFC 7840W Printer

1 Answer

Changed toner now can't get rid of toner low message.


you must reset the chip of cartridge.
usually the shop / service center sale a new.
and you can replace a new.

May 23, 2011 | Brother MFC 7840W Printer

1 Answer

The message tuner life end. replace the toner cartridge. I refilled it but still the message continues and the printer doesnot work. How can I clear the message?


You will have to reset the toner chip. Here's a video on how to do it, different Brother printer, but same process: http://www.youtube.com/watch?v=j18yFsjbado

Jan 28, 2011 | Brother MFC 7840W Printer

1 Answer

I changed my toner on my brother MFC-7840W printer, but I don't know how to get rid ot the "toner low" on my printer


you cant!your lucky its working,most brother printers will not do anything with an aftermarket cartridge-just ignore it and use your commen sense to decide when the inks going

Feb 25, 2010 | Brother MFC 7840W Printer

2 Answers

I replaced the toner for MFC 7840W and I am still gettin the toner life end message, I can not print. Please help


As noted from a previous poster, this one works!

I have a brother mfc 7840w

I first used the electrical tape trick and that worked for a while. Then got the toner low message again. I then tried the *00 trick, which works as follows:

1. lift lid and open front cover
2. press clear/back. "Replace Drum?" will appear on the screen.
3. Press "*00" it will then read accepted and the toner low error (End of Toner Life) should go away.
4. close it all up and your done.

Thanks for all your help guys.

Jan 18, 2010 | Brother MFC 7840W Printer

2 Answers

We replaced the toner and it is still saying "toner life end replace toner cartridge." and we can't get it to print or fax or copy


I have a brother mfc 7840w

I first used the electrical tape trick and that worked for a while. Then got the toner low message again. I then tried the *00 trick, which works as follows:

1. lift lid and open front cover
2. press clear/back. "Replace Drum?" will appear on the screen.
3. Press "*00" it will then read accepted and the toner low error (End of Toner Life) should go away.
4. close it all up and your done.

Jun 23, 2009 | Brother MFC 7840W Printer

Not finding what you are looking for?
Brother MFC 7840W Printer Logo

868 people viewed this question

Ask a Question

Usually answered in minutes!

Top Brother Office Equipment & Supplies Experts

CheckitRight
CheckitRight

Level 3 Expert

1362 Answers

Ron Dufek
Ron Dufek

Level 3 Expert

398 Answers

James Cagle
James Cagle

Level 2 Expert

453 Answers

Are you a Brother Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...