Comment 7 for bug 642444

Read all of the posts on the Related Questions" and they report the same problem and I didn't see any solution there either.

Ran wget and downloaded the pluin file. Then ran the shell command as you specified.

Got a segmentation fault and the reported failure to create a file under '~/.config/ibus/bus'

Found out that (K)Ubuntu does not install ibus by default and your plug in installation doesn't bother to check if it is install and install if not.

Installed ibus and ran your shell command again - same segmentation fault. Output follows:

sh hplip-3.10.2-plugin.run
Verifying archive integrity... All good.
Uncompressing HPLIP 3.10.2 Plugin Self Extracting Archive...................................

HP Linux Imaging and Printing System (ver. 3.10.2)
Plugin Installer ver. 3.0

Copyright (c) 2001-9 Hewlett-Packard Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.

Plug-in version: 3.10.2
Installed HPLIP version: 3.10.2
Number of files to install: 30

./hplip-plugin-install: line 4: 5454 Segmentation fault python ./plugin_install.py $*

So the python script seems to have a serious error that has not yet been diagnosed and/or understood
.