[SOLVED] OfficeJet Pro 6968 printing everything with cyan background

Asked by Steve McClellan on 2019-02-22

EDIT: This was caused by updating ghostscript to 9.26~dfsg+0-0ubuntu0.18.04.5, and fixed by updating to ghostscript 9.26~dfsg+0-0ubuntu0.18.04.6.

-----

Starting today, everything I print in color from my computer prints with a cyan background (when the background should be white). This includes printing from Firefox, LibreOffice, and a PDF viewer, as well as test pages via Ubuntu and HPLIP.

Switching the printing to grayscale eliminates the undesired background (even on high-quality grayscale).

Printing a test page from the printer itself does not have this problem, which leads me to suspect a driver problem of some sort. I tried installing the latest driver and all dependencies, but I'm still getting the cyan background.

Any ideas as to what's going on here and how to fix?

Vitals:
Xubuntu 18.04
HP OfficeJet Pro 6968
Driver: hp-officejet_pro_6960.ppd
Driver Version: 3.18.7 (Problem also occurred on 3.17.10.)

Output of 'hp-check -t':

Saving output in log file: /home/rickrose/hp-check.log

HP Linux Imaging and Printing System (ver. 3.18.7)
Dependency/Version Check Utility ver. 15.1

Copyright (c) 2001-15 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.

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).

Check types:
a. EXTERNALDEP - External Dependencies
b. GENERALDEP - General Dependencies (required both at compile and run time)
c. COMPILEDEP - Compile time Dependencies
d. [All are run-time checks]
PYEXT SCANCONF QUEUES PERMISSION

Status Types:
    OK
    MISSING - Missing Dependency or Permission or Plug-in
    INCOMPAT - Incompatible dependency-version or Plugin-version

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

 Kernel: 4.15.0-23-generic #25-Ubuntu SMP Wed May 23 18:02:16 UTC 2018 GNU/Linux
 Host: rickrose-260-p026
 Proc: 4.15.0-23-generic #25-Ubuntu SMP Wed May 23 18:02:16 UTC 2018 GNU/Linux
 Distribution: 12 18.04
 Bitness: 64 bit

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

HPLIP-Version: HPLIP 3.18.7
HPLIP-Home: /usr/share/hplip
HPLIP-Installation: Auto installation is supported for ubuntu distro 18.04 version

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

[hplip]
version=3.18.7

[dirs]
home=/usr/share/hplip
run=/var/run
ppd=/usr/share/ppd/HP
ppdbase=/usr/share/ppd
doc=/usr/share/doc/hplip-3.18.7
html=/usr/share/doc/hplip-3.18.7
icon=/usr/share/applications
cupsbackend=/usr/lib/cups/backend
cupsfilter=/usr/lib/cups/filter
drv=/usr/share/cups/drv/hp
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=no
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=3.18.7
restricted-build=no
ui-toolkit=qt4
qt3=no
qt4=yes
qt5=no
policy-kit=no
lite-build=no
udev_sysfs_rules=no
hpcups-only-build=no
hpijs-only-build=no
apparmor_build=yes
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:
[upgrade]
notify_upgrade = true
last_upgraded_time = 1550785220
pending_upgrade_time = 0
latest_available_version = 3.17.10

[installation]
date_time = 02/21/2019 19:30:57
version = 3.18.7

[settings]
systray_visible = 0
systray_messages = 1

[last_used]
device_uri = "hpfax:/usb/OfficeJet_Pro_6960?serial=TH7BD1P1FG"
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 =

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

--------------
| COMPILEDEP |
--------------

 gcc gcc - GNU Project C and C++ Compiler REQUIRED - 7.3.0 OK -
 make make - GNU make utility to maintain groups of programs REQUIRED 3.0 4.1 OK -
 libtool libtool - Library building support services REQUIRED - 2.4.6 OK -

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

 libcrypto libcrypto - OpenSSL cryptographic library REQUIRED - 1.1.0 OK -
 python-xml Python XML libraries REQUIRED - 2.2.5 OK -
 libnetsnmp-devel libnetsnmp-devel - SNMP networking library development files REQUIRED 5.0.9 5.7.3 OK -
 sane-devel SANE - Scanning library development files REQUIRED - - OK -
 pil PIL - Python Imaging Library (required for commandline scanning with hp-scan) OPTIONAL - 1.1.7 OK -
 pyqt4-dbus PyQt 4 DBus - DBus Support for PyQt4 REQUIRED 4.0 4.12.1 OK -
 libpthread libpthread - POSIX threads library REQUIRED - 2.27 OK -
 python-devel Python devel - Python development files REQUIRED 2.2 2.7.15 OK -
 cups-devel CUPS devel- Common Unix Printing System development files REQUIRED - 2.2.7 OK -
 python-dbus Python DBus - Python bindings for DBus REQUIRED 0.80.0 1.2.6 OK -
 cups-ddk CUPS DDK - CUPS driver development kit OPTIONAL - - OK -
 reportlab Reportlab - PDF library for Python OPTIONAL 2.0 3.4.0 OK -
 pyqt4 PyQt 4- Qt interface for Python (for Qt version 4.x) REQUIRED 4.0 4.12.1 OK -
 libusb libusb - USB library REQUIRED - 1.0 OK -
 cups-image CUPS image - CUPS image development files REQUIRED - 2.2.7 OK -
 python2X Python 2.2 or greater - Python programming language REQUIRED 2.2 2.7.15 OK -
 python-notify Python libnotify - Python bindings for the libnotify Desktop notifications OPTIONAL - - OK -
 libjpeg libjpeg - JPEG library REQUIRED - - OK -
 sane SANE - Scanning library REQUIRED - - OK -

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

 scanext Scan-SANE-Extension REQUIRED - 3.18.7 OK -
 hpaio HPLIP-SANE-Backend REQUIRED - 3.18.7 OK 'hpaio found in /etc/sane.d/dll.conf'

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

 gs GhostScript - PostScript and PDF language interpreter and previewer REQUIRED 7.05 9.26 OK -
 scanimage scanimage - Shell scanning program OPTIONAL 1.0 1.0.27 OK -
 cups CUPS - Common Unix Printing System REQUIRED 1.1 2.2.7 OK 'CUPS Scheduler is running'
 network network -wget OPTIONAL - 1.19.4 OK -
 policykit PolicyKit - Administrative policy framework OPTIONAL - 0.105 OK -
 xsane xsane - Graphical scanner frontend for SANE OPTIONAL 0.9 0.999 OK -
 dbus DBus - Message bus system REQUIRED - 1.12.2 OK -
 avahi-utils avahi-utils OPTIONAL - 0.7 OK -

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

 hpmudext IO-Extension REQUIRED - 3.18.7 OK -
 cupsext CUPS-Extension REQUIRED - 3.18.7 OK -

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

device `hpaio:/usb/OfficeJet_Pro_6960?serial=TH7BD1P1FG' is a Hewlett-Packard OfficeJet_Pro_6960 all-in-one
device `hpaio:/net/OfficeJet_Pro_6960?ip=192.168.0.144' is a Hewlett-Packard OfficeJet_Pro_6960 all-in-one

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

  Device URI Model
  ---------------------------------------- ---------------------
  hp:/usb/OfficeJet_Pro_6960?serial=TH7BD1 HP OfficeJet Pro 6960
  P1FG

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

OfficeJet-Pro-6960
------------------
Type: Printer
Device URI: hp:/usb/OfficeJet_Pro_6960?serial=TH7BD1P1FG
PPD: /etc/cups/ppd/OfficeJet-Pro-6960.ppd
warning: Failed to read /etc/cups/ppd/OfficeJet-Pro-6960.ppd ppd file
PPD Description:
Printer status: printer OfficeJet-Pro-6960 is idle. enabled since Thu 21 Feb 2019 07:07:23 PM EST
Communication status: Good

OfficeJet-Pro-6960-Fax-4
------------------------
Type: Fax
Device URI: hpfax:/usb/OfficeJet_Pro_6960?serial=TH7BD1P1FG
PPD: /etc/cups/ppd/OfficeJet-Pro-6960-Fax-4.ppd
warning: Failed to read /etc/cups/ppd/OfficeJet-Pro-6960-Fax-4.ppd ppd file
PPD Description:
Printer status: printer OfficeJet-Pro-6960-Fax-4 is idle. enabled since Thu 21 Feb 2019 07:07:30 PM EST
Communication status: Good

OJPro6960
---------
Type: Printer
Device URI: hp:/net/OfficeJet_Pro_6960?ip=192.168.0.144
PPD: /etc/cups/ppd/OJPro6960.ppd
warning: Failed to read /etc/cups/ppd/OJPro6960.ppd ppd file
PPD Description:
Printer status: printer OJPro6960 is idle. enabled since Thu 21 Feb 2019 05:10:09 PM EST
Communication status: Good

OJPro6960fax
------------
Type: Fax
Device URI: hpfax:/net/OfficeJet_Pro_6960?ip=192.168.0.144
PPD: /etc/cups/ppd/OJPro6960fax.ppd
warning: Failed to read /etc/cups/ppd/OJPro6960fax.ppd ppd file
PPD Description:
Printer status: printer OJPro6960fax is idle. enabled since Thu 21 Feb 2019 05:09:46 PM EST
Communication status: Good

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

USB OfficeJet-Pro-6960 Required - - OK Node:'/dev/bus/usb/001/002' Perm:' root lp rw- rw- rw- rw- r--'
No errors or warnings.

Done.

Question information

Language:
English Edit question
Status:
Solved
For:
HPLIP Edit question
Assignee:
No assignee Edit question
Solved by:
Steve McClellan
Solved:
2019-02-25
Last query:
2019-02-25
Last reply:
Steve McClellan (steve470) said : #1

Turns out this problem was caused by ghostscript (9.26~dfsg+0-0ubuntu0.18.04.5) and fixed with ghostscript (9.26~dfsg+0-0ubuntu0.18.04.6).