Did your printer work okay with Linux or Windows? Your printer doesn't seem to be recognised. Is it connected by USB?

Login a terminal as root and try

hp-setup --qt5

Good luck! I can't understand why the printer is not being detected

Turn off your computer, then turn on your printer then boot GhostBSD. Check the output while the computer starts to see if the printer is being detected. After getting to the desktop, open a terminal, login as root and run dmesg -a And see if your printer was detected. If it was then run hp-setup an...

Do you still get error messages when you run

hp-setup?

Strange. You should have all the gui software already installed.
Try the following.

pkg ins py36-qt5-core py36-qt5-dbussupport py36-qt5-gui py36-sip py36-qt5-widgets

Then try as root again

hp-setup

Install the hplip package.

pkg ins hplip

Open the terminal, login as root. Then run

hp-setup


Then follow the instructions. It should find the printer and install the correct drivers

Cliqz is based on Firefox

Nice work!