Maybe gnome-manual-duplex could be integrated into Ubuntu, or it could be added to the Ubuntu repository and a user could be prompted to install it, if the user selects manual two sided.
https://sourceforge.net/projects/g-manual-duplex/
Maybe gnome-manual-duplex could be integrated into Ubuntu, or it could be added to the Ubuntu repository and a user could be prompted to install it, if the user selects manual two sided.
https:/ /sourceforge. net/projects/ g-manual- duplex/