I haven't done it myself, but recognize several caveats with ink-jet printing:
1 - can't print white
2 - ink jet ink colours aren't necessarily very opaque, and may not end up having the desired result when applied on a coloured or dark background
3 - ink jet inks are often water soluble, so you'll need to seal the decal after printing and before trying to use it or the ink will all run off when you wet it.
For 1 and 2, you might be able to go around it by printing on white instead of clear decal paper and carefully trim the decal right to the edge of the logo when you cut it out.