>  As of this moment I'm etching a board made with epson  photo print paper.

Now that's an interesting idea.  I ran some actual photographic paper
through an ink-jet-like printer, since I had some sitting about, and it's
not much more expensive than the "photo finish printing paper", even if it's
new.  EXPIRED photographic paper can be had really cheap.  I'm not sure I'd
run real photo paper through a laser printer, the (resin or geletine?)
surface MIGHT be melt below the fuser temperature of a printer.  Photo
emulsions are designed to withstand some wetness during processing, but
they will soften up eventually.

BillW