"unknown option hplip-3.15.2.run" it says during installation

I try to install a
HP Deskjet 2544 to Ubuntu 12.04

At first the hplip-3.15.2 got startet and opened a lot of files, but then it just stopped.
 I dint had downloaded the hplip-3.15.2.run asc file and thought this could be the reason.

Now when I try to do it all over again with the downloaded asc-file it says
"unknown option hplip-3.15.2.run", right in the beginning.

It also syas:
Mono strongnam - version 2.10.8.1
Strongname utillity for signing assemblies.
Copyright 2002 ....