Brother control center 4 won't open on my computer
This may help others with scanning issues:
I just bought a Brother MFCJ6510 printer/scanner and was nearly driven cracked trying to get the scanner to work as it was not talking to the PC, even though as a printer it was working fine. Realised eventually that it was just the Brother Control Centre 4 it wasn't talking to. After hours of re-installing software and updates, etc, nothing worked.
The solution: I went into Control Panel on my PC (I use Windows XP), to the Scanners and Cameras section, and in there the Brother Scanner was visible and could be used from there, Click on it to open the Windows Scanner and Camera Wizard and use that. Further, by right-clicking on it and going to properties I choose the software to start when it talks to the PC. I abandoned the Brother CC4 and set it up to start the Scanner and Camera Wizard if I choose 'Scan to Image' on the scanner control panel, and to open Photoshop if I 'Scan to File' on the scanner. Works fine either way, just make sure you choose the right dpi setting to suit your needs.
Hope this helps somebody else as frustrated as I was.