Question about Brother MFC-8840DN (Bundle) All-In-One Laser Printer

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Brother 8840DN Our machine is an all in one. Yesterday it worked fine, today it won't copy or fax. It just beeps when you try to enter a fax number or change it to copy rather than fax. It won't clear. I'm not getting any error messages either. We have turned it off and back on and checked the connections. It will scan and print okay. I'm not sure what else to try. Any ideas?

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Re: Brother 8840DN

See if the 'OK' button isn't pushed in. This button is a bit sensitive...

Posted on Feb 05, 2008

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Re: Brother 8840DN - Brother MFC-8840DN (Bundle) All-In-One Laser Printer Printers & Copiers

Check left hinge for cracks.

Posted on Dec 23, 2007

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Brother mfc-7840w won't receive fax

The first thing that I would try multiple people to ask them to fax you.Sometimes the 2 machines don't "sync".This is a toll free fax test number that I always use to check my machines..1-888-473-2963.Just write the words "FAX TEST" in large letters on a blank sheet of paper..fax it to that number...leave the line should get a fax back in about a minute.If you get a fax back...your machine is fine...let me know if this was helpful....thanks.

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Fax default

I found this online today:

Mode Timer

The (Brother MFC-8480 DN) machine has 3 mode keys on the control panel: Fax, Scan and Copy

You can set how much time the machine takes after the last COPY or SCAN operation to return to FAX mode. If you choose OFF, the machine will stay in the mode you last used.

1. Press MENU, 1, 1.

2. 2. Press up/down arrows to choose the amount of seconds or OFF. Press OK.

3. 3. Press STOP/EXIT. I haven't tested this yet, as the machine I'm trying to adjust is at my workplace, but maybe this answer is what we're looking for.



Nov 23, 2011 | Brother MFC-8480DN All-In-One Laser...

1 Answer

Just got a new computer w/windows 7 and now my brother mfc-8840D won't scan to pdf now? Any ideas on a solution to fix?

How to get a MFC-8840/D/DN to scan to Windows 7 over the network or by USB:

First - Download the Windows Vista Full Driver & Software Package from Brother: Brother MFC-8840DN driver download page

Install the drivers using a custom install - pick only the Network scanning drivers, unless you want the other junk - no promises on how well the other stuff works.
Alternatively, if connecting the MFC-8840DN to Windows 7 by USB, download the Printer and Scanner Driver for Local Connection. It is a separate download. Install only the Scanner driver.

Once the Vista scanner driver is installed, you can test by running the built-in Windows 7 Scanner Wizard. Here are instructions on how to test.

As far as conversion to PDF, that will depend on the software. I am not sure if the Control Center or Paperport softwares work on Windows 7. I have not tried those. I have found that freeware STP will works fine.
Here is a link to the STP homepage.
Here is a link to how to use STP with the Brother MFC-8840DN

May 23, 2010 | Brother MFC 8840D All-In-One Laser Printer

1 Answer

Fax only mode and will not make copies

Press the mode switch until fax only goes off.

Jul 17, 2009 | Brother MFC-8460N All-In-One Printer

1 Answer

Fax Reserved

try unpluging the machine and the replug and let the machine reboot. brother tech

Jan 07, 2009 | Brother MFC-8440 All-In-One Laser Printer

2 Answers

Error 46 on a Brother MFc-8840DN

According to the Brother MFC 8840DN manual:

Machine error code xx: MFC has a mechanical problem
Solution: Call Brother customer service and tell them the error number
USA 800-284-4329

Remember to rate users who offer their expertise to you at no cost :)

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2 Answers

Won't recognize legal size paper

I have a Brother MFC-8840Dn (full legal-size flatbed as well as document feeder). I use Windows XP Pro and a USB connection. I'm not sure my fix works with other Brother models or different Windows operating systems, but it's a way to start troubleshooting at least.

I've always been able to print legal-sized pages from word processing or spreadsheet programs and receive legal-sized faxes. But I never could make legal-sized photocopies or PDF scans. The image was always cut off at Letter size. The fix is a Brother Utility set-up setting:

*** Go to Start / All Programs / Brother / MFL-Pro Suite MFC 8840Dn / Scanner Utility. (This link may also be called something like Scanner Settings.)
*** At the "Maximum Scanning Size", select "Legal" instead of "Letter/A4".
*** Click OK and restart your PC for the new setting to take effect.

It's like magic -- I can now scan a full legal-sized PDF, whether on the flatbed or through the ADF. I also tried a compressed TIFF scan and it came out fine.

**** Make sure your software and/or Brother Control Center scanning configurations are set to Legal if that's what you want for the particular image scan. The Brother Utility setting simply enables the option of choosing the larger legal-sized paper, which then allows the full legal-sized image scan, You always have to set your software to make that choice, just as you would to make and print smaller images on Letter, A4, envelopes, etc. (NOTE: I always start scans through software on my PC, like Adobe Acrobat or PaperPort, and the Utility Setting fix is working fine. However, I just tried pressing the SCAN button on the front panel of the MFC itself with a legal-sized document on the flatbed and through the document feeder. I still got Letter-sized image scans. So, there must be another setting somewhere for starting scans directly from the MFC that I'll locate later.)

I was about to buy a different brand of scanner because of the frustration with legal-sized images. It's like having a new scanner now :) I hope this Utility Setting info helps you troubleshoot your legal-sized image problem.

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2 Answers

Brother Fax Machine MFC8840Dn broken hinge

you can actually by the hinge itself for only 27$

the website is here:

Mar 19, 2008 | Brother MFC-8840DN (Bundle) All-In-One...

1 Answer


You should run the brother admin tool which can be downloaded at the homepage of brother of your country. After installing you can see and do the settings of the machine.

In case you simply want to check the setting get the network manual (download at brother homepage). It will explain how you can print out all setting being made to the machine and how to change them.

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Brother fax model mfc-420cn not working

This is how you can get your instructions. goto your favorite search engine.Enter Brother fax machine support. Goto the the site that has brother manufacture and look for the support tab. Once there you look for your model number and then select it. It will give you downloads for drivers , manuals and technical information

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