thank you for your tip.
I have looked to that web-page, but it seems thats is almost too high for me...
Think of it, I am a newbie...
-I don't know, what I should downloaded from which source; And then, if it would downloaded, what goes on? -And so on?
But on this way I analyzed the Sparky-facts:
1. The Sane-Backend
already exists on the Sparky
2. I need a HP-driver, which doesn't supported by HP, but thankfully und luckily by the HPLIP-Projekt:http://hplipopensource.com/hplip-web/about.html
But also this would not be an easy execise for me...
But the best news is, that those drivers on Sparky already installed, too.
3. Only a Frontend
must be still installed. For me is the "Simple Scan"-Frontend enough and so I typed at the LXTerminal:
sudo apt-get install simple-scan
And ready, there it was (Menu, Graphic,).
But I must say, that really helpfull informations are not located on the Sparky-Wiki; I found this on the Ubuntu-Wiki. https://wiki.ubuntuusers.de/Scanner/Software/(german language)