deskjet 3520 connected but not printing

New Deskjet 3520. Installed via the supplied CD on my Vista partition on my dual-boot laptop. Works fine via Vista. Then installed on my openSUSE 12.3 system with hplip 3.12.11. Everything looks ok except when printing I get message saying print completed ok but nothing comes off printer. Here's the output from hpcheck:
___________________________________________________________________________________________________________________
Initializing. Please wait...
warning: suse-12.3 version is not supported. Using suse-12.2 versions dependencies to verify and install...

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

 Kernel: 3.7.10-1.28-desktop #1 SMP PREEMPT Mon Feb 3 14:11:15 UTC 2014 (c9a2c6c) GNU/Linux
 Host: linux-1nqo.site
 Proc: 3.7.10-1.28-desktop #1 SMP PREEMPT Mon Feb 3 14:11:15 UTC 2014 (c9a2c6c) GNU/Linux
 Distribution: suse 12.3

-----------------------
| HPLIP CONFIGURATION |
-----------------------

HPLIP-Version: HPLIP 3.12.11
HPLIP-Home: /usr/share/hplip
warning: HPLIP-Installation: Auto installation is not supported for suse distro 12.3 version

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

[hplip]
version=3.12.11

[dirs]
home=/usr/share/hplip
run=/var/run
ppd=/usr/share/cups/model/manufacturer-PPDs/hplip
ppdbase=/usr/share/cups/model/manufacturer-PPDs
doc=/usr/share/doc/packages/hplip
icon=/usr/share/applications
cupsbackend=/usr/lib/cups/backend
cupsfilter=/usr/lib/cups/filter
drv=/usr/lib/cups/driver

# Following values are determined at configure time and cannot be changed.
[configure]
network-build=yes
libusb01-build=no
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=yes
foomatic-rip-hplip-install=no
hpcups-install=yes
cups-drv-install=no
cups-ppd-install=yes
internal-tag=3.12.11
restricted-build=no
ui-toolkit=qt4
qt3=no
qt4=yes
policy-kit=no
hpijs-only-build=no
lite-build=no
udev-acl-rules=no
udev_sysfs_rules=no
hpcups-only-build=no
hpijs-only-build=no

Current contents of '/var/lib/hp/hplip.state' file:
[plugin]
installed = 1
eula = 1
version = 3.12.11

Current contents of '~/.hplip/hplip.conf' file:
[upgrade]
latest_available_version = 3.14.4
notify_upgrade = false
last_upgraded_time = 1401182442.82903
pending_upgrade_time = 0

[settings]
systray_visible = 0
systray_messages = 0

[last_used]
device_uri = "hp:/net/Deskjet_3520_series?zc=HPF0921CA5DEF4"
printer_name =
working_dir = .

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

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

[polling]
enable = false
interval = 5
device_list =

[fax]
voice_phone =
email_address =

[installation]
date_time = 27/05/14 10:48:51
version = 3.12.11

 <Package-name> <Package-Desc> <Required/Optional> <Min-Version> <Installed-Version> <Status> <Comment>

--------------------------
| External Dependencies |
--------------------------

 gs Ghostscript REQUIRED 7.05 9.06 OK -
 network Network-wget OPTIONAL - - OK -
 error: dbus DBus REQUIRED - 1.6.8 MISSING 'DBUS may not be installed or not running'
 scanimage Shell-Scanning OPTIONAL 1.0 1.0.23 OK -
 error: policykit Admin-Policy-framework OPTIONAL - 0.110 MISSING 'policykit needs to be installed'
 xsane SANE-GUI OPTIONAL 0.9 0.998 OK -
 cups CUPS REQUIRED 1.1 1.5.4 OK 'CUPS Scheduler is running'

-------------------------
| General Dependencies |
-------------------------

 error: reportlab Python-PDF-Lib OPTIONAL 2.0 - MISSING 'reportlab needs to be installed'
 error: libcrypto OpenSSL-Crypto-Lib REQUIRED - 1.0.1 MISSING 'libcrypto needs to be installed'
 error: pil Python-Image-Lib OPTIONAL - - MISSING 'pil needs to be installed'
 pyqt4-dbus PyQt4-DBUS REQUIRED 4.0 4.9.6 OK -
 error: libjpeg JPEG-Lib REQUIRED - - MISSING 'libjpeg needs to be installed'
 libpthread POSIX-Threads-Lib REQUIRED - 2.17 OK -
 python-dbus Python-DBUS REQUIRED 0.80.0 1.1.1 OK -
 error: python-devel Python-SDK REQUIRED 2.2 2.7.3 MISSING 'python-devel needs to be installed'
 pyqt4 Python-Qt4 REQUIRED 4.0 4.9.6 OK -
 error: cups-devel CUPS-SDK REQUIRED - 1.5.4 MISSING 'cups-devel needs to be installed'
 error: sane-devel SANE-SDK REQUIRED - - MISSING 'sane-devel needs to be installed'
 error: libusb USB-Lib REQUIRED - 1.0 MISSING 'libusb needs to be installed'
 sane Scan-Lib REQUIRED - - OK -
 error: cups-image CUPS-Image-Lib REQUIRED - 1.5.4 MISSING 'cups-image needs to be installed'
 error: libnetsnmp-devel SNMP-Networking-SDK REQUIRED 5.0.9 - MISSING 'libnetsnmp-devel needs to be installed'
 python-xml Python-XML-Lib REQUIRED - 2.0.0 OK -
 python-notify Desktop-notifications OPTIONAL - - OK -

------------------------------
| Compile Time Dependencies |
------------------------------

 error: gcc gcc-Compiler REQUIRED - - MISSING 'gcc needs to be installed'
 libtool Build-tools REQUIRED - 2.4.2 OK -
 error: make GNU-Build-tools REQUIRED 3.0 - MISSING 'make needs to be installed'

----------------------
| Python Extentions |
----------------------

 cupsext CUPS-Extension REQUIRED - 3.12.11 OK -
 pcardext PhotoCard-Extension REQUIRED - 3.12.11 OK -
 hpmudext IO-Extension REQUIRED - 3.12.11 OK -

-----------------------
| Scan Configuration |
-----------------------

 hpaio HPLIP-SANE-Backend REQUIRED - 3.12.11 OK 'hpaio found in /etc/sane.d/dll.conf'
 scanext Scan-SANE-Extension REQUIRED - 3.12.11 OK -

------------------------------
| DISCOVERED SCANNER DEVICES |
------------------------------

device `hpaio:/net/Deskjet_3520_series?zc=HPF0921CA5DEF4' is a Hewlett-Packard Deskjet_3520_series all-in-one

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

No devices found.

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

Deskjet_3520
------------
Type: Printer
Device URI: hp:/net/Deskjet_3520_series?zc=HPF0921CA5DEF4
PPD: /etc/cups/ppd/Deskjet_3520.ppd
PPD Description: HP Deskjet 3520 Series hpijs, 3.12.11
Printer status: printer Deskjet_3520 is idle. enabled since Tue 27 May 2014 10:42:34 BSready to print
Communication status: Good

EPSON-Stylus-Photo-830U
-----------------------
Type: Unknown
Device URI: usb://EPSON/Stylus%20Photo%20830U
PPD: /etc/cups/ppd/EPSON-Stylus-Photo-830U.ppd
PPD Description: Epson Stylus Photo 830U - CUPS+Gutenprint v5.2.9
Printer status: printer EPSON-Stylus-Photo-830U is idle. enabled since Mon 12 May 2014 17:29:31 BST
warning: Printer is not HPLIP installed. Printers must use the hp: or hpfax: CUPS backend for HP-Devices.

--------------
| PERMISSION |
--------------

groups user-groups Required - - OK users sys lp video

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

Missing Required Dependencies
-----------------------------
error: 'dbus-1-devel' package is missing/incompatible
error: 'python-gobject2' package is missing/incompatible
error: 'openssl' package is missing/incompatible
error: 'libjpeg-devel' package is missing/incompatible
error: 'python-devel' package is missing/incompatible
error: 'python-xml' package is missing/incompatible
error: 'libpython2_7-1_0' package is missing/incompatible
error: 'cups-devel' package is missing/incompatible
error: 'cupsddk' package is missing/incompatible
error: 'sane-backends-devel' package is missing/incompatible
error: 'libusb-1_0-devel' package is missing/incompatible
error: 'libusb-1_0-0' package is missing/incompatible
error: 'cups-devel' package is missing/incompatible
error: 'net-snmp-devel' package is missing/incompatible
error: 'gcc-c++' package is missing/incompatible
error: 'make' package is missing/incompatible

Missing Optional Dependencies
-----------------------------
error: 'python-imaging' package is missing/incompatible

Total Errors: 17
Total Warnings: 1

Re-run 'hp-check --fix' command to prompt and fix the issues.

Done.
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