hp OfficeJet Pro 8500 WLAN with hplip 3.10 is printing backside mirrored (Duplex)

I upgraded to hplip 3.10 because of problems with the margins wen printing duplex. Now things become even worth....

If printing duplex log edge, the first page is fine, but the backside is mirrored. Duplex printing is useless that way.

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bash-4.0$ cat hp-check.log
hp-check[7623]: info: :
Initializing. Please wait...
Fedora

12

Scheduler ist aktiv

1.4.2

Linux f12.localdomain 2.6.31.5-127.fc12.i686 #1 SMP Sat Nov 7 21:41:45 EST 2009 i686 i686 i386 GNU/Linux

hp-check[7623]: info: :
hp-check[7623]: info: :---------------
hp-check[7623]: info: :| SYSTEM INFO |
hp-check[7623]: info: :---------------
hp-check[7623]: info: :
hp-check[7623]: info: :Basic system information:
hp-check[7623]: info: :Linux f12.localdomain 2.6.31.5-127.fc12.i686 #1 SMP Sat Nov 7 21:41:45 EST 2009 i686 i686 i386 GNU/Linux
hp-check[7623]: info: :
hp-check[7623]: info: :Distribution:
hp-check[7623]: info: :fedora 12
hp-check[7623]: info: :
hp-check[7623]: info: :Checking Python version...
hp-check[7623]: info: :OK, version 2.6.2 installed
hp-check[7623]: info: :
hp-check[7623]: info: :Checking PyQt 4.x version...
hp-check[7623]: info: :OK, version 4.7 installed.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for CUPS...
hp-check[7623]: info: :Status: Scheduler ist aktiv
hp-check[7623]: info: :Version: 1.4.2
warning: /etc/cups/cupsd.conf file not found or not accessible.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dbus/python-dbus...
hp-check[7623]: info: :dbus daemon is running.
hp-check[7623]: info: :python-dbus version: 0.83.0
hp-check[7623]: info: :
hp-check[7623]: info: :
hp-check[7623]: info: :------------------------------------
hp-check[7623]: info: :| COMPILE AND RUNTIME DEPENDENCIES |
hp-check[7623]: info: :------------------------------------
hp-check[7623]: info: :
note: To check for compile-time only dependencies, re-run hp-check with the -c parameter (ie, hp-check -c).
note: To check for run-time only dependencies, re-run hp-check with the -r parameter (ie, hp-check -r).
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: CUPS - Common Unix Printing System...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: CUPS devel- Common Unix Printing System development files...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: CUPS image - CUPS image development files...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: DBus - Message bus system...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: gcc - GNU Project C and C++ Compiler...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: GhostScript - PostScript and PDF language interpreter and previewer...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: libcrypto - OpenSSL cryptographic library...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: libjpeg - JPEG library...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: libnetsnmp-devel - SNMP networking library development files...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: libpthread - POSIX threads library...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: libtool - Library building support services...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: libusb - USB library...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: make - GNU make utility to maintain groups of programs...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: PIL - Python Imaging Library (required for commandline scanning with hp-scan)...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: PolicyKit - Administrative policy framework...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: PyQt 4 DBus - DBus Support for PyQt4...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: Python DBus - Python bindings for DBus...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: Python devel - Python development files...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: Python libnotify - Python bindings for the libnotify Desktop notifications...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: Python XML libraries...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: Python 2.3 or greater - Required for fax functionality...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: Python 2.2 or greater - Python programming language...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: Reportlab - PDF library for Python...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: SANE - Scanning library...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: SANE - Scanning library development files...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: scanimage - Shell scanning program...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking for dependency: xsane - Graphical scanner frontend for SANE...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :
hp-check[7623]: info: :----------------------
hp-check[7623]: info: :| HPLIP INSTALLATION |
hp-check[7623]: info: :----------------------
hp-check[7623]: info: :
hp-check[7623]: info: :
hp-check[7623]: info: :Currently installed HPLIP version...
hp-check[7623]: info: :HPLIP 3.10.2 currently installed in '/usr/share/hplip'.
hp-check[7623]: info: :
hp-check[7623]: info: :Current contents of '/etc/hp/hplip.conf' file:
hp-check[7623]: info: :# hplip.conf. Generated from hplip.conf.in by configure.

[hplip]
version=3.10.2

[dirs]
home=/usr/share/hplip
run=/var/run
ppd=/usr/share/ppd/HP
ppdbase=/usr/share/ppd
doc=/usr/share/doc/hplip-3.10.2
icon=/usr/share/applications
cupsbackend=/usr/lib/cups/backend
cupsfilter=/usr/lib/cups/filter
drv=/usr/share/cups/drv/hp

# Following values are determined at configure time and cannot be changed.
[configure]
network-build=yes
pp-build=yes
gui-build=yes
scanner-build=yes
fax-build=yes
dbus-build=yes
cups11-build=no
doc-build=yes
shadow-build=no
hpijs-install=yes
foomatic-drv-install=no
foomatic-ppd-install=no
foomatic-rip-hplip-install=no
hpcups-install=yes
cups-drv-install=yes
cups-ppd-install=no
internal-tag=3.10.2rc1.9
restricted-build=no
ui-toolkit=qt4
qt3=no
qt4=yes
policy-kit=no
hpijs-only-build=no
lite-build=no
udev-acl-rules=yes
hpcups-only-build=no
hpijs-only-build=no

hp-check[7623]: info: :
hp-check[7623]: info: :Current contents of '/var/lib/hp/hplip.state' file:
hp-check[7623]: info: :# hplip.state - HPLIP runtime persistent variables.

[plugin]
installed=0
eula=0

hp-check[7623]: info: :
hp-check[7623]: info: :Current contents of '~/.hplip/hplip.conf' file:
hp-check[7623]: info: :[last_used]
printer_name = text
working_dir = .
device_uri = hp:/net/Officejet_Pro_8500_A909g?ip=192.168.178.54

[commands]
scan = /usr/bin/xsane -V %SANE_URI%

[installation]
version = 3.10.2rc1.9
date_time = 29.03.2010 23:16:58

[settings]
systray_messages = 0
systray_visible = 0

[fax]
email_address =
voice_phone =

[refresh]
rate = 30
enable = false
type = 1

[polling]
enable = false
device_list =
interval = 5

hp-check[7623]: info: :
hp-check[7623]: info: :--------------------------
hp-check[7623]: info: :| DISCOVERED USB DEVICES |
hp-check[7623]: info: :--------------------------
hp-check[7623]: info: :
hp-check[7623]: info: :No devices found.
hp-check[7623]: info: :
hp-check[7623]: info: :---------------------------------
hp-check[7623]: info: :| INSTALLED CUPS PRINTER QUEUES |
hp-check[7623]: info: :---------------------------------
hp-check[7623]: info: :
hp-check[7623]: info: :
hp-check[7623]: info: :FS-1010
hp-check[7623]: info: :-------
hp-check[7623]: info: :Type: Unknown
hp-check[7623]: info: :Device URI: usb://Kyocera/FS-1010
hp-check[7623]: info: :PPD: /etc/cups/ppd/FS-1010.ppd
hp-check[7623]: info: :PPD Description: Kyocera FS-1010 - CUPS+Gutenprint v5.2.5 Simplified
hp-check[7623]: info: :Printer status: Drucker „FS-1010“ deaktiviert seit Di 16 Mär 2010 10:48:02 CET - Unplugged or turned off
warning: Printer is not HPLIP installed. Printers must use the hp: or hpfax: CUPS backend to function in HPLIP.
hp-check[7623]: info: :
hp-check[7623]: info: :Officejet_Pro_8500_A909g_fax
hp-check[7623]: info: :----------------------------
hp-check[7623]: info: :Type: Fax
hp-check[7623]: info: :Device URI: hpfax:/net/Officejet_Pro_8500_A909g?ip=192.168.178.54
hp-check[7623]: info: :PPD: /etc/cups/ppd/Officejet_Pro_8500_A909g_fax.ppd
hp-check[7623]: info: :PPD Description: HP Fax hpcups
hp-check[7623]: info: :Printer status: Drucker „Officejet_Pro_8500_A909g_fax“ ist inaktiv; aktiviert seit Mo 29 Mär 2010 22:27:49 CEST
hp-check[7623]: info: :Communication status: Good
hp-check[7623]: info: :
hp-check[7623]: info: :text
hp-check[7623]: info: :----
hp-check[7623]: info: :Type: Printer
hp-check[7623]: info: :Device URI: hp:/net/Officejet_Pro_8500_A909g?ip=192.168.178.54
hp-check[7623]: info: :PPD: /etc/cups/ppd/text.ppd
hp-check[7623]: info: :PPD Description: HP Officejet Pro 8500 a909g, hpcups 3.10.2
hp-check[7623]: info: :Printer status: Drucker „text“ ist inaktiv; aktiviert seit Mo 29 Mär 2010 22:33:41 CESready to print
hp-check[7623]: info: :Communication status: Good
hp-check[7623]: info: :
hp-check[7623]: info: :
hp-check[7623]: info: :----------------------
hp-check[7623]: info: :| SANE CONFIGURATION |
hp-check[7623]: info: :----------------------
hp-check[7623]: info: :
hp-check[7623]: info: :'hpaio' in '/etc/sane.d/dll.conf'...
error: Not found. SANE backend 'hpaio' NOT properly setup (needs to be added to /etc/sane.d/dll.conf).
hp-check[7623]: info: :
hp-check[7623]: info: :Checking output of 'scanimage -L'...
hp-check[7623]: info: :device `hpaio:/net/Officejet_Pro_8500_A909g?ip=192.168.178.54' is a Hewlett-Packard Officejet_Pro_8500_A909g all-in-one

hp-check[7623]: info: :
hp-check[7623]: info: :---------------------
hp-check[7623]: info: :| PYTHON EXTENSIONS |
hp-check[7623]: info: :---------------------
hp-check[7623]: info: :
hp-check[7623]: info: :Checking 'cupsext' CUPS extension...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking 'pcardext' Photocard extension...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking 'hpmudext' I/O extension...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :Checking 'scanext' SANE scanning extension...
hp-check[7623]: info: :OK, found.
hp-check[7623]: info: :
hp-check[7623]: info: :
hp-check[7623]: info: :
hp-check[7623]: info: :---------------
hp-check[7623]: info: :| USER GROUPS |
hp-check[7623]: info: :---------------
hp-check[7623]: info: :
hp-check[7623]: info: :florian

hp-check[7623]: info: :
hp-check[7623]: info: :-----------
hp-check[7623]: info: :| SUMMARY |
hp-check[7623]: info: :-----------
hp-check[7623]: info: :
error: 2 errors and/or warnings.
hp-check[7623]: info: :
hp-check[7623]: info: :Please refer to the installation instructions at:
hp-check[7623]: info: :http://hplip.sourceforge.net/install/index.html

hp-check[7623]: info: :
hp-check[7623]: info: :Done.