HP Device Manager won't start.

I'm trying to start HP Device Manager but it won't work. First i tryed just buy clicking on it in my menu but nothing happened. Then i ran hp-tools in the terminal but just this came up:
[jakob@Katten applications]$ hp-toolbox
HP Linux Imaging and Printing System (ver. 3.11.12)
HP Device Manager ver. 15.0
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.
warning: Qt/PyQt 4 initialization failed.
error: hp-toolbox requires GUI support. Exiting.
As you can see here i've installed pyqt but it still won't run. I've even tryed the pyqt3 but it still didn't start. So how do i get this program running?
[jakob@Katten applications]$ pacman -Ss pyqt
extra/eric 5.1.7-1
    A full-featured Python 3.x and Ruby IDE in PyQt4
extra/eric4 4.4.19-1
    A full-featured Python 2.x and Ruby IDE in PyQt4
extra/pyqt 4.9-2 [installed]
    A set of Python 3.x bindings for the Qt toolkit
extra/python2-pyqt 4.9-2
    A set of Python 2.x bindings for the Qt toolkit
community/pyqt3 3.18.1-9
    A set of Python bindings for the Qt3 toolkit

HarlemSquirrel, please read the forum rules. Necrobumping threads, especially with empty/power posts is not allowed.
Closing...

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