Please stop giving wrong informationThe reference letter has either have to be a certified true copy of the original (if you are scanning a black-white copy) or a high-quality (> 300dpi) color scan of the original.
True. Certified copy of Original means , Notary or attesting party vouching for the photocopy that it's not forged and validated. Notary is legally bound for that. This is never same as color scan copy.
My bad - mixed up DIBP with ACS. So newbienz is correct.
Have to disagree with you here..I got my self +ve assessment with color scanned of the original R&R, the rest of the documents are notarized