I'm sure some of you read mangas

The raw versions that are scanned are usually a mess. Then some person cleans it so it can be scanlated.
I want to know how to clean it

I just started coloring manga and I figured I'd learn how to clean too. Maybe I'm not looking in the right places, but I noticed there aren't many clean Naruto scanlations available for recent chapters. It's easy to find Bleach chapters though.