Can not print two-sided in HP color laserjet 3800

Hi,

Sorry for the late reply. To help us understand and analyze the issue please follow following things.

=> Download and install the latest HPLIP release from http://hplipopensource.com/hplip-web/install/install/index.html:
=> Reconfigure print queue with the commands mentioned below.
       =>system-config-printer (remove all print queues)
                     or
         Go to system ->Administration -> printing (then remove all print queues)
       =>hp-setup (for adding print queue)
=>Enable/Clear Logs as mentioned below

=>Try to print any document and If issue is not resolved then execute following steps

    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

       => rm /tmp/*.out /tmp/*.bmp
       => cat /dev/null > /var/log/cups/error_log
       => cat /dev/null > /var/log/messages
       => cat /dev/null > /var/log/syslog
       => hp-check -t > /tmp/hpcheck.log

    c) Try to print any document and then please send following files
          => /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 document

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

**Please use "Create a bug report" to attach the logs as "Ask a Question" does not provide the file attachment option.