Installing a printer on an Arch Linux with GNOME 3 seems to be a little bugged. The printer is a HP LaserJet M1536 on an intranet (not a direct plugging).
Installing the service for printers
What else than CUPS? You can install the
cups package which is the main
reference about printing service.
$ pacman -S cups
Installing the driver
You may also install the driver for the printer. In the case of a HP LaserJet
1536, the driver is installed with
$ pacman -S hplip
Starting CUPS service
You can start the CUPS daemon with
$ systemctl start cupsd
However, this will only start the daemon for the current session. In order to start it at every boot, use the following command.
$ systemctl enable cups
Adding the printer
This is where the problem begins! You may try to add the printer through the GNOME interface. Go in the preference menu, then the icon about printers. Click on add a printer. If the printer is on your intranet, you should see it after a small time of loading. Click on it to add the printer. You may have an error on this step. Why this is not working? No idea.
However, the printer can also be added through the CUPS interface. Open your web browser and go to your local port 631 (localhost:631/admin). You will be asked for a login and a password. These are the ones about the root account of your computer. Now, you can add the printer, it should work.
The printer does not appear
It seems that GNOME 3 has problems communicating with CUPS. In fact, the printers does not appear into the GNOME PDF viewer. You may try with Evince, which is a nice PDF viewer. Evince had no problem about seeing the installed printers.