device communication error code 5012

hi, i've installed hplip 3.9.4b for my hp-c4280. I use mandriva 2009.1
Scane with xsane is OK, but unable to print. I have device communication error code 5012.
hp-check -t says :

 Linux Imaging and Printing System (ver. 3.9.4b)
Dependency/Version Check Utility ver. 14.3

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.

Note: hp-check can be run in three modes:
1. Compile-time check mode (-c or --compile): Use this mode before compiling the HPLIP
supplied tarball (.tar.gz or .run) to determine if the proper dependencies are installed to
successfully compile HPLIP.
2. Run-time check mode (-r or --run): Use this mode to determine if a distro supplied package
(.deb, .rpm, etc) or an already built HPLIP supplied tarball has the proper dependencies
installed to successfully run.
3. Both compile- and run-time check mode (-b or --both) (Default): This mode will check both
of the above cases (both compile- and run-time dependencies).

Saving output in log file: hp-check.log

Initializing. Please wait...

---------------
| SYSTEM INFO |
---------------

Basic system information:
Linux localhost 2.6.29.3-desktop586-1mnb #1 SMP Thu May 14 13:59:03 EDT 2009 i686 Intel(R) Pentium(R) M processor 2.00GHz GNU/Linux

Distribution:
mandriva 2009.1

HPOJ running?
No, HPOJ is not running (OK).

Checking Python version...
OK, version 2.6.1 installed

Checking PyQt 4.x version...
OK, version 4.4.4 installed.

Checking for CUPS...
Status: l’ordonnanceur tourne
Version: 1.3.10
warning: /etc/cups/cupsd.conf file not found or not accessible.

Checking for dbus/python-dbus...
dbus daemon is running.
python-dbus version: 0.83.0

------------------------------------
| COMPILE AND RUNTIME DEPENDENCIES |
------------------------------------

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).

Checking for dependency: CUPS - Common Unix Printing System...
OK, found.

Checking for dependency: CUPS DDK - CUPS driver development kit...
OK, found.

Checking for dependency: CUPS devel- Common Unix Printing System development files...
OK, found.

Checking for dependency: CUPS image - CUPS image development files...
OK, found.

Checking for dependency: DBus - Message bus system...
OK, found.

Checking for dependency: gcc - GNU Project C and C++ Compiler...
OK, found.

Checking for dependency: GhostScript - PostScript and PDF language interpreter and previewer...
OK, found.

Checking for dependency: libcrypto - OpenSSL cryptographic library...
OK, found.

Checking for dependency: libjpeg - JPEG library...
OK, found.

Checking for dependency: libnetsnmp-devel - SNMP networking library development files...
OK, found.

Checking for dependency: libpthread - POSIX threads library...
OK, found.

Checking for dependency: libtool - Library building support services...
OK, found.

Checking for dependency: libusb - USB library...
OK, found.

Checking for dependency: make - GNU make utility to maintain groups of programs...
OK, found.

Checking for dependency: PIL - Python Imaging Library (required for commandline scanning with hp-scan)...
OK, found.

Checking for dependency: PolicyKit - Administrative policy framework...
warning: NOT FOUND! This is an OPTIONAL/RUNTIME ONLY dependency. Some HPLIP functionality may not function properly.

Checking for dependency: ppdev - Parallel port support kernel module....
OK, found.

Checking for dependency: PyQt 4 DBus - DBus Support for PyQt4...
OK, found.

Checking for dependency: Python ctypes - A foreign function library for Python...
OK, found.

Checking for dependency: Python DBus - Python bindings for DBus...
OK, found.

Checking for dependency: Python devel - Python development files...
OK, found.

Checking for dependency: Python XML libraries...
OK, found.

Checking for dependency: Python 2.3 or greater - Required for fax functionality...
OK, found.

Checking for dependency: Python 2.2 or greater - Python programming language...
OK, found.

Checking for dependency: Reportlab - PDF library for Python...
OK, found.

Checking for dependency: SANE - Scanning library...
OK, found.

Checking for dependency: SANE - Scanning library development files...
OK, found.

Checking for dependency: scanimage - Shell scanning program...
OK, found.

Checking for dependency: xsane - Graphical scanner frontend for SANE...
OK, found.

----------------------
| HPLIP INSTALLATION |
----------------------

Currently installed HPLIP version...
HPLIP 3.9.4b currently installed in '/usr/share/hplip'.

Current contents of '/etc/hp/hplip.conf' file:
# hplip.conf. Generated from hplip.conf.in by configure.

[hplip]
version=3.9.4b

[dirs]
home=/usr/share/hplip
run=/var/run
ppd=/usr/share/ppd/HP
ppdbase=/usr/share/ppd
doc=/usr/share/doc/hplip-3.9.4b
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=no
gui-build=yes
scanner-build=yes
fax-build=yes
dbus-build=yes
cups11-build=no
doc-build=yes
shadow-build=no
foomatic-drv-install=no
foomatic-ppd-install=yes
foomatic-rip-hplip-install=no
cups-ppd-install=no
cups-drv-install=no
internal-tag=3.9.4b.10
restricted-build=no
ui-toolkit=qt4
qt3=no
qt4=yes
policy-kit=no

Current contents of '/var/lib/hp/hplip.state' file:
# hplip.state - HPLIP runtime persistent variables.

[plugin]
installed=0
eula=0

Current contents of '~/.hplip/hplip.conf' file:
[last_used]
printer_name = Photosmart_C4200
working_dir = .
device_uri = "hp:/usb/Photosmart_C4200_series?serial=MY83PQK0HQ04VP"

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

[installation]
version = 3.9.4b.10
date_time = 06/01/09 12:02:31

[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

--------------------------
| DISCOVERED USB DEVICES |
--------------------------

  Device URI Model
  ------------------------------------ --------------------------
  hp:/usb/Photosmart_C4200_series?seri HP Photosmart C4200 series
  al=MY83PQK0HQ04VP

---------------------------------
| INSTALLED CUPS PRINTER QUEUES |
---------------------------------

warning: No queues found.

----------------------
| SANE CONFIGURATION |
----------------------

'hpaio' in '/etc/sane.d/dll.conf'...
OK, found. SANE backend 'hpaio' is properly set up.

Checking output of 'scanimage -L'...
device `hpaio:/usb/Photosmart_C4200_series?serial=MY83PQK0HQ04VP' is a Hewlett-Packard Photosmart_C4200_series all-in-one

---------------------
| PYTHON EXTENSIONS |
---------------------

Checking 'cupsext' CUPS extension...
OK, found.

Checking 'pcardext' Photocard extension...
OK, found.

Checking 'hpmudext' I/O extension...
OK, found.

Checking 'scanext' SANE scanning extension...
OK, found.

-----------------
| USB I/O SETUP |
-----------------

Checking for permissions of USB attached printers...

HP Device 0x5c11 at 005:007:
    Device URI: hp:/usb/Photosmart_C4200_series?serial=MY83PQK0HQ04VP
    Device node: /dev/bus/usb/005/007
    Mode: 0660
getfacl: Removing leading '/' from absolute path names
# file: dev/bus/usb/005/007
# owner: henri
# group: lp
user::rw-
user:henri:rw-
group::rw-
mask::rw-
other::---

---------------
| USER GROUPS |
---------------

henri

-----------
| SUMMARY |
-----------

error: 1 error or warning.

Please refer to the installation instructions at:
http://hplip.sourceforge.net/install/index.html

Done.
[henri@localhost ~]$

What is wrong in the system, how can this be solved ?

Thanks