HP All-in-One Printer No Longer Scanning

I wish I had your confidence but here is the result:-

alastair@AJBR-W530:~> hp-doctor

HP Linux Imaging and Printing System (ver. 3.19.6)
Self Diagnse Utility and Healing Utility ver. 1.0

Copyright (c) 2001-18 HP 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.


HP Linux Imaging and Printing System (ver. 3.19.6)
Self Diagnse Utility and Healing Utility ver. 1.0

Copyright (c) 2001-18 HP 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.

 

Checking for Deprecated items....
error: This distro (i.e suse  20190916) is either deprecated or not yet supported.
The diagnosis is limited on unsupported platforms. Do you want to continue?(y=yes*, n=no):y


Checking for HPLIP updates....

HP Linux Imaging and Printing System (ver. 3.19.6)
HPLIP upgrade latest version ver. 1.0

Copyright (c) 2001-18 HP 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.

error: HPLIP upgrade is disabled by openSUSE for security reasons, see https://bugzilla.novell.com/show_bug.cgi?id=853405 - if you like to upgrade HPLIP, use an openSUSE software package manager like YaST or zypper.

Done.
error: Failed to upgrade latest HPLIP. Is hp-upgrade already running (i.e. foreground or background)?


Checking for Dependencies....
warning: 3-20190916 version is not supported. Using 3-15.0 versions dependencies to verify and install...

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

 Kernel: 5.2.14-1-default #1 SMP Tue Sep 10 10:52:01 UTC 2019 (374b0ae) GNU/Linux
 Host: AJBR-W530
 Proc: 5.2.14-1-default #1 SMP Tue Sep 10 10:52:01 UTC 2019 (374b0ae) GNU/Linux
 Distribution: 3 20190916
 Bitness: 64 bit


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

HPLIP-Version: HPLIP 3.19.6
HPLIP-Home: /usr/share/hplip
warning: HPLIP-Installation: Auto installation is not supported for 3 distro  20190916 version 

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

[hplip]
version=3.19.6

[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
html=/usr/share/doc/packages/hplip
icon=/usr/share/applications
cupsbackend=/usr/lib/cups/backend
cupsfilter=/usr/lib/cups/filter
drv=/usr/lib/cups/driver
bin=/usr/bin
apparmor=/etc/apparmor.d
# Following values are determined at configure time and cannot be changed.
[configure]
network-build=yes
libusb01-build=no
pp-build=no
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=3.19.6
restricted-build=no
ui-toolkit=qt5
qt3=no
qt4=no
qt5=yes
policy-kit=no
lite-build=no
udev_sysfs_rules=no
hpcups-only-build=no
hpijs-only-build=no
apparmor_build=no
class-driver=no


Current contents of '/var/lib/hp/hplip.state' file:
Plugins are not installed. Could not access file: No such file or directory

Current contents of '~/.hplip/hplip.conf' file:
[installation]
date_time = 09/17/19 22:23:10
version = 3.19.6


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

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

 cups                 CUPS - Common Unix Printing System                           REQUIRED        1.1             2.3             OK         'CUPS Scheduler is running'
 gs                   GhostScript - PostScript and PDF language interpreter and previewer REQUIRED        7.05            9.27            OK         -
 xsane                xsane - Graphical scanner frontend for SANE                  OPTIONAL        0.9             0.999           OK         -
 scanimage            scanimage - Shell scanning program                           OPTIONAL        1.0             1.0.27          OK         -
 dbus                 DBus - Message bus system                                    REQUIRED        -               1.12.12         OK         -
 policykit            PolicyKit - Administrative policy framework                  OPTIONAL        -               0.116           OK         -
 network              network -wget                                                OPTIONAL        -               1.20.3          OK         -
 avahi-utils          avahi-utils                                                  OPTIONAL        -               0.7             OK         -

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

 libjpeg              libjpeg - JPEG library                                       REQUIRED        -               -               OK         -
 cups-devel           CUPS devel- Common Unix Printing System development files    REQUIRED        -               2.3             OK         -
 cups-image           CUPS image - CUPS image development files                    REQUIRED        -               2.3             OK         -
 libpthread           libpthread - POSIX threads library                           REQUIRED        -               b'2.29'         OK         -
 libusb               libusb - USB library                                         REQUIRED        -               1.0             OK         -
 sane                 SANE - Scanning library                                      REQUIRED        -               1.0.27          OK         -
 sane-devel           SANE - Scanning library development files                    REQUIRED        -               1.0.27          OK         -
 libnetsnmp-devel     libnetsnmp-devel - SNMP networking library development files REQUIRED        5.0.9           5.8             OK         -
 libcrypto            libcrypto - OpenSSL cryptographic library                    REQUIRED        -               1.1.1           OK         -
 python3X             Python 2.2 or greater - Python programming language          REQUIRED        2.2             3.7.3           OK         -
 python3-notify2      Python libnotify - Python bindings for the libnotify Desktop notifications OPTIONAL        -               -               OK         -
Traceback (most recent call last):
  File "/usr/bin/hp-doctor", line 297, in <module>
    num_errors, num_warns = dep.validate(DEPENDENCY_RUN_AND_COMPILE_TIME, False)
  File "/usr/share/hplip/check.py", line 368, in validate
    self.core.dependencies[dep])
  File "/usr/share/hplip/check.py", line 210, in __update_deps_info
    installed_ver = self.core.version_func[deps_info[6]]()
  File "/usr/share/hplip/installer/dcheck.py", line 303, in get_pyQt4_version
    from PyQt4 import QtCore
ImportError: cannot import name 'QtCore' from 'PyQt4' (unknown location)
alastair@AJBR-W530:~> 


Hope this means something. Could it be a bug after all?