[CentOS] scanner only works in su mode

On Thu, 26 Sep 2013, Robert Heller wrote:

> It looks like to use the scanner you need to edit your /etc/group file or use
> the user manager to add yourself to the lp group.

That did not work.
I ran a separate login to get one that admitted I was in the lp group.
Applying strace to hp-scan told me that it could not open
/dev/bus/usb/001/006 for writing.
Its owner and group are both root.

-- 
Michael   hennebry at web.cs.ndsu.NoDak.edu
"On Monday, I'm gonna have to tell my kindergarten class,
whom I teach not to run with scissors,
that my fiance ran me through with a broadsword."  --  Lily