Question about Brother MFC 7840W Printer

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How do i reset drum unit life counter on the mfc 7840w

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Hello, i am going to ball park this, with machine on, open up front cover as if you are going to replace toner, press the clear button, on the display it may say, new drum press 1 for yes 2 for no, then close front cover. normally the drum comes with the instructions on this, but sometimes its missing, but also brothers web site has the info on this. i work on these alot so most of the resets are the same

Posted on Oct 08, 2010

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  • Brigid Golden Nov 03, 2010

    You are the BEST!!! Followed your easy directions and drum life counter has been reset. Thank you soooooo much!!!

  • ghghg281 Dec 19, 2010

    Amaizing!!! Sooooooo easy... ! thanks much!

  • Erin Landers Oct 31, 2012

    Good Lord thank you so much!!!!!

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Jimsta01
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SOURCE: how do I reset the drum counter on the a Brother

open the front cover of machine ( where the cartridge is installed), then press the clear button, and then press 1 for yes for change drum question.

Posted on May 16, 2010

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1 Answer

How to replace drum on 7840w printer


  • Open the door on the front of the printer.
  • remove the drum/toner from the opening pulling out and lifing up slightly.
  • remove the toner cartridge from the drum unit. (press green level to release.
  • insert toner cartridge into the new drum unit

link for general printer help : http://www.brother-usa.com/support/ModelInfo.aspx?R3ModelID=MFC7840W#.VNkfGfnF-RY

FAQ with instructions on drum replacement.

Frequently Asked Questions

Jul 11, 2014 | Brother MFC 7840W Printer

1 Answer

How to reset the drum on a Brother 7840


Remove old drum from the unit.
Remove toner and install in the new drum.
Place Drum Back in the machine, leave cover open.
With the cover door open Hold Clear/Back button (about 5 sec.) until the Lcd reads Replace/Reset Drum? yes? no?
Press 1 for yes and close cover.
The machine will cycle and restart, once it says ready the counter has been reset to 100%

Feb 18, 2011 | Brother MFC 7840W Printer

1 Answer

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


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.

Jan 05, 2011 | Brother MFC 7840W Printer

1 Answer

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.

Jun 18, 2010 | Brother MFC 7840W Printer

1 Answer

I recently noticed a message that said "drum end soon" on the screen portion of my printer. With that I went and replaced the drum and toner. The problem is this: The "drum end soon" message never quit...


Hi,

This message would continue to appear if the drum unit counter was not reset when you installed a new drum.
To reset the drum unit counter, follow the instructions below:
  • Press Menu on the Control Panel.

  • Press the Up or Down Arrow key to select Machine Info..

  • Press OK.

  • Press the Up or Down Arrow key to select Reset Menu.

  • Press OK.

  • Press the Up or Down Arrow key to select Drum.

  • Press OK.

  • Press 1 to reset the drum unit counter.

Thank you !!

Jun 09, 2010 | Brother MFC 7840W Printer

1 Answer

How do I reset the drum counter on the a Brother MFC-7840W???


open the front cover of machine ( where the cartridge is installed), then press the clear button, and then press 1 for yes for change drum question.

May 13, 2010 | Brother MFC 7840W Printer

3 Answers

How do I reset the drum counter on the a Brother MFC-7840W???


open the front cover of the machine then press clear back it will say replace drum? press ok
the quality will probably start getting pretty bad as you will be using the drum passed it's life

Mar 22, 2010 | Brother MFC 7840W Printer

1 Answer

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.

Feb 15, 2010 | Brother MFC 7840W Printer

3 Answers

Reset the drum counter on Brother MFC-9840CDW


press the 3 and 9 button at the same time in ready mode.

then the reset menu will appear, press the up or down arrow until you get to drum.

press ok,
and select 1 to reset or 2 to exit.
it will return the ready state and your done.

Jun 27, 2009 | Brother MFC-9840CDW Laser Printer

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