Cannot communicate with twain devise

Brother® DCP-110C, 120C; Fax 1840C, 1940CN, 2440C; MFC-210C, 420CN, 620CN, 640CW, 820CW, 3240C, 3340CN, 5440CN, 5840CN
Also:

Brother DCP-110C
Brother DCP-117C
Brother DCP-120C
Brother DCP-340CW
Brother IntelliFax 1840C
Brother IntelliFax 1940CN
Brother IntelliFax 2440C
Brother MFC-210C
Brother MFC-420CN
Brother MFC-620CN
Brother MFC-640CW
Brother MFC-820CW
Brother MFC-3240C
Brother MFC-3340CN
Brother MFC-5440CN
Brother MFC-5840CN

Instructions extracted from http://social.technet.microsoft.com/Forums/en-US/w7itproappcompat/thread/f903e1ed-e15b-4cb6-a20a-50f628f95939

"{Ok, here is how I got the whole package from my Brother MFC and PaperPort 11 with the printer utility.
First if you have tried to install the suite or paperport and are having issues uninstalling through windows download this wonderful program that removes everything called Revo Uninstaller at www.revouninstaller.com and choose the freeware version.
Now go to the Brother website and search for the Windows 7 MFLPRO Suite and you should download a zip file that contains the suite for multiple MFC’s. Unzip it and set it aside. This is only the Brother Suite for the Brother MFC and the Control Center 3.

TO find the Windows 7 version of MFL PRO go here
http://www.brother-usa.com/downloads/default.aspx?ProductGroupID=5

PaperPort 11 will have to be installed from the actual CD that came with your printer. Inside the CD with Windows Explorer File System locate the file Inst32.exe that should be inside the CD under the install folder then MFC-465CN (my model) then usa folder. Remember the location.
Now set everything aside and let’s start. Open up control panel, click on programs and features then choose Run programs made for previous versions of Windows. You have just opened up program commutability, now click next and wait now choose not listed and press next. Browse and fine the Inst32.exe file that I mentioned earlier. Now click next and then choose Try Recommended Settings, Next your setting should say applied and compatible with Windows XP SP2, then you will see a tab on the next screen that says Start the program. Click on it and allow it to start installing this will start the suite and the first thing that installs is PaprPort, be patient let it continue to run and after it will install the PaoperPort print driver, then after it will start into the MFL PRO Suite. This is where my installation halted because the suite is a 32Bit version it would not continue. I looked and PaperPort program and printer where installed. Close it up and pres next.

Finally now you can install the MFL PRO for Windows 7. Open up the folder you downloaded from Brother and look for your model and you will see the setup.exe application, click on it and start installing MFL PRO along with Control Center 3. That’s it, and your setup should be complete.}"


Hope the thread from http://social.technet.microsoft.com/Forums/en-US/w7itproappcompat/thread/f903e1ed-e15b-4cb6-a20a-50f628f95939
will help.

Please follow the link for manuals, you need to download the software user guide for instructions for scanning.

http://welcome.solutions.brother.com/bsc/public/us/ca/en/doc/manual_index.html?reg=us&c=ca&lang=en&prod=mfc7840w_all&dlid=&flang=English&type2=-1

http://welcome.solutions.brother.com/bsc/public/us/us/en/dlf/download_top.html?reg=us&c=us&lang=en&prod=mfc6490cw_all
download this side

You are correct in that paperport 9 will not work on Vista and paperport 11 is the alternative. I called about a similar model and the guy at Brother told me that paperport 11 is included on an updated cd from brothermall.com for some models. It was only about $3 so you might want to check for your model. Hope this helps.

Open preview and go to file and then scroll down to "import from scanner" MFC should show up as a choice and then when the window appears, go ahead and pick your preferences and scan

uninstall the brother software for this machine, then reinstall the softeware. the paper port some times will install automaticly or you may have to click on iy to indtall. brother tech

you have to install the paperport software. This should be done when you have run the whole mfl-pro suite.

go to progr. /scansoft/paperport/ click scanner and simply scan into the paperport desktop.

You have to connect the mfc directly to a USB port of your computer. DO NOT use a hub.

The mfc uses the XP buil-in scan driver.

Did you install the whole mfl-pro suite? Use paperport to do scanning from your pc.

you have to install the mfl-pro suite given to you by cd. After installation go to START/PROGRAMM/BROTHER/PC-FAX SETUP (Guess you run windows). Or simply use the paperport software: drag your document and drop it to the faxsymbol. If you dont have it, download (153mb) from brother homepage of your country. Pleas notice: the faxprinter of xp wont work anymore after installation of the brother drivers (but you have the bro drivers then installed for fax :) )