I have a Brother MFC-J470DW printer that I have connected to a Linux desktop (running Ubuntu 14.04) using a wireless router network. The printer works fine for printing and copying, but now I want to add the scan function.

To set up the scan function, I went to the Brother web page for this printer:

http://support.brother.com/g/b/downloadlist.aspx?c=eu_ot&lang=en&prod=mfcj470dw_us_eu_as&os=128

and under Scanner Drivers selected "Scanner driver 64bit (deb package)", "Scan-key-tool 64bit (deb package)", and "Scanner Setting file (deb package)". For each package, I clicked the EULA, and selected "open with Ubuntu Software Center". Then after the USC window pops up, I click on Install and the red line goes from left to right. In each case, the USC window then had a green checkmark and the Install box changes to Reinstall (that's how you know it worked).

So now I try it out. Hitting the Scan button on the printer, selecting "Scan to file", and hitting ok produces the message "Check Connection".

I checked the Brother Linux Information FAQ (scanner) page and the 14th question seems the same as mine:

    When I try to use the scan key on my network connected
    machine, I receive the error "Check connection" or I can not
    select anything except "scan to FTP".

I explored the solution given for this FAQ, but found from ifconfig that I am already using eth0, the default setting, so presumably that is not the problem.

I also found brscan-skey installed in /usr/bin and did

drrm@drrmlinux2:~$ brscan-skey -t
drrm@drrmlinux2:~$ brscan-skey

but that didn't help - I still get the "Check connection" message.

What can you suggest to fix this problem?