I am pure linux user, don't use windows nor wine (most of the time) Also I don't have Windows installed

Now I want to buy a new scanner, Of course this scanner must be able to work under linux If I asked the seller "Can it work with Linux" he will replay "linux? I don't know but it work with photoshop and mspaint" or if he is smarter he will simply say "I do not know"

So I need your help, which scanner should I buy ? is there any brands that RESPECT linux and provide drivers for it ? Any advices would you like to tell me about before I go on and buy one? Thanks