How to install a HP network printer.
Go to the HP website page and download the linux driver for your printer. (linux driver for your linux os : ubuntu,debian,....)
Place the downloaded file (in mine case: hplib-3.13.6.run) to your desktop directory.
open the Konsole and enter followed command: sh hplib-3.13.6.run
Follow the instructions on your screen.
You can open the hp setup from the console with the command: hp-setup
Printer installation file you can download here for this printer: HP OfficeJet Pro 8600 (Ubuntu 12.04LTS installer)
Below you can see some screenshots from the installation on an Ubuntu computer.