Quote Originally Posted by Roger Cole View Post
... and sometimes require a helping hand, and this has (but far from always) resulted in stains in fingerprint patterns.
Do you tone your prints? Then this might come from an emulsion not being hardened enough (depending on the water hardness). In our house we have pretty hard water and when I touch the paper I clearly see the finger prints on toned prints once they are dry. If I use a hardener bath that problem goes away.