|Anything you needed would have been on the disk that originally came with the printer. If you used that disk are you sure you're accessing the IJ scan utilites as specified in my link above?|
If you don't have the disk these are the downloads for that model:
Note the only separate downloads for 'IJ scan utilities' are for linux and Mac OS.
You can click on the 'windows 7 (8)' or the 'windows 7 (x64)(8)' (they're both the same) in the left column to isolate the windows 7 downloads. But the one I think you need is the download titled 'MG2400 series full driver and software package'.