image printing contrast is too dark

I should also add that if I change from hplip to hpijs then brightness and contrast are perfect - but of course hpijs is impractical for printing images

Hi,

Can you please try downloading and installing the latest HPLIP (3.11.10) release. You can download the same from http://hplipopensource.com/hplip-web/gethplip.html. Please let us know, if the problem still persists with the latest.

Thanks for using HPLIP.

Thanks and Regards,
Srikanth Lokare

Thanks.
I should have mentioned that I already tried that but the results are the same.

FYI:

The latest HPLIP 3.11.10 release as ready-made RPMs for
various openSUSE and Suse Linux Enterprise versions
is also available via the "Printing" project in the openSUSE
build service for 32-bit i586 and 64-bit x86_64 architecture.

E.g. from this direct URL:
http://download.opensuse.org/repositories/Printing/openSUSE_11.4/
as packages "hplip", "hplip-hpijs", and "hplip-sane".

Also read
http://en.opensuse.org/SDB:How_to_set-up_a_HP_printer
and
https://build.opensuse.org/project/show?project=Printing

Hi,

Thanks for reporting the bug in HPLIP. To help us understand and analyze the issue please follow following things.

=> Remove all preinstalled hplip packages.
=> Please install and download HPLIP 3.11.10 from http://hplipopensource.com/hplip-web/gethplip.html
=> Please use automatic installation method provided at http://hplipopensource.com/hplip-web/install/install/index.html
=> Please do following things to capture some logs:

    a)Open /etc/cups/cupsd.conf in root mode and replace

        LogLevel warn

          with

       LogLevel debug
       hpLogLevel 15

    b) Open Terminal and run following commands:
       => su
       => /etc/init.d/cups restart
                  or
       => service cups restart
       => cd /tmp
       => rm *.out
       => rm *.bmp
       => hp-check -t > /tmp/hpcheck.log

    c) Try to print the file and then send
          => /var/log/syslog (if present),
          => /var/log/messages (if present),
          => /var/log/cups/error_log
          => /tmp/*.bmp
          => /tmp/*.out
          => /tmp/hpcheck.log
          => document used for printing
          => Scanned copy of printed image

    d) Please let me know the application used for testing.

NOTE: Please create a bug report to attach the log files.

when doing this part . . .
  => cd /tmp
       => rm *.out
       => rm *.bmp
       => hp-check -t > /tmp/hpcheck.log

I received the following

thinkpad:/tmp # rm *.out
rm: cannot remove `*.out': No such file or directory
thinkpad:/tmp # rm *.bmp
rm: cannot remove `*.bmp': No such file or directory
thinkpad:/tmp # hp-check -t > /tmp/hpcheck.log
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).
warning: NOT FOUND! This is an OPTIONAL/RUNTIME ONLY dependency. Some HPLIP functionality may not function properly.
error: Could not access file: No such file or directory

bug report now filed.
Thanks.

Thanks Sanjay Kumar, that solved my question.