What is the website of the CUPS web interface?

What is the cupsenable command? I typed "cupsenable" into terminal and that didn't make the printer work.

post deleted

michael@michael-HP-EliteDesk-800-G1-SFF:~$ sudo cancel -a
[sudo] password for michael:
michael@michael-HP-EliteDesk-800-G1-SFF:~$ sudo cupsenable HP-LaserJet-Pro-MFP-M127fn
michael@michael-HP-EliteDesk-800-G1-SFF:~$ lpstat -p
printer HP-LaserJet-Pro-MFP-M127fn is idle. enabled since Fri 05 Apr 2019 11:19:45 PM EDT
printer HP-LaserJet-Pro-MFP-M127fn-Fax-2 is idle. enabled since Sat 10 Mar 2018 11:46:35 AM EST
michael@michael-HP-EliteDesk-800-G1-SFF:~$


Still not working.

p.s. What is the website of this cups interface?

The CUPS web GUI is accessible from localhost (your local machine). As I posted already (post #14), navigate to 'localhost:631/printers'

then slect the relevant printer entry > Maintenance > Print Test Page

If you can't get it working, start over by removing the printer config and reconfigure using 'hp-setup'.

Couldn't print a test page. I tried deleting the printer at that local page and got this:

Unauthorized
Enter your username and password or the root username and password to access this page. If you are using Kerberos authentication, make sure you have a valid Kerberos ticket.

Enter 'root' as username and your root password (for administrator functions).

Where does it ask for this or have the option to type it in?

Ubuntu by default does not enable root nor does root have a password. You need to add your user to the lpadmin group via the usermod command

Usually cups will automatically ask for a username password if you select a function that needs admin privileges.

You should also be able to delete the printer via the print wizard configuration menu

What command do I type into terminal to add me as a user via the usermod command ?

Where is this print wizard configuration that you speak of?

You really should take the time to learn about administrating the distro that you use. I'm sure that you can Google as well as I can.

Anyway, to remove the existing printer configuration do

Configure again using...

Seems like my system can't find hp-setup, see below

michael@michael-HP-EliteDesk-800-G1-SFF:~$ sudo lpadmin -x HP-LaserJet-Pro-MFP-M127fn
[sudo] password for michael:
lpadmin: The printer or class does not exist.
michael@michael-HP-EliteDesk-800-G1-SFF:~$ hp-setup

Command 'hp-setup' not found, but can be installed with:

sudo apt install hplip

michael@michael-HP-EliteDesk-800-G1-SFF:~$ sudo apt install hplip
Reading package lists... Done
Building dependency tree
Reading state information... Done
hplip is already the newest version (3.17.10+repack0-5).
The following packages were automatically installed and are no longer required:
fonts-mplus fonts-roboto fonts-roboto-hinted freeglut3 libglade2-0
libglew2.0 libgtkglext1 libllvm6.0 libllvm6.0:i386 liblua5.1-0 libmini18n1
libminizip1 libmupen64plus2 libqt4-opengl libqt5designer5 libqt5help5
libquazip5-1 libretro-core-info libudev1:i386 mupen64plus-audio-all
mupen64plus-audio-sdl mupen64plus-data mupen64plus-input-all
mupen64plus-input-sdl mupen64plus-rsp-all mupen64plus-rsp-hle
mupen64plus-rsp-z64 mupen64plus-ui-console mupen64plus-video-all
mupen64plus-video-arachnoid mupen64plus-video-glide64
mupen64plus-video-glide64mk2 mupen64plus-video-rice mupen64plus-video-z64
python-glade2 python3-dbus.mainloop.pyqt5 python3-pyqt5 python3-sip
retroarch-assets yabause-common
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 148 not upgraded.
michael@michael-HP-EliteDesk-800-G1-SFF:~$ hp-setup

Command 'hp-setup' not found, but can be installed with:

sudo apt install hplip

michael@michael-HP-EliteDesk-800-G1-SFF:~$

The above implies that the printer configuration has already been removed. You can check that with
I have no idea why the hp-setup isn't found. It's supplied as part of the hplip package.

You can check the installed files with

Try specifying the full path of the command in a terminal window...

michael@michael-HP-EliteDesk-800-G1-SFF:~$ /usr/bin/hp-setup
bash: /usr/bin/hp-setup: No such file or directory
michael@michael-HP-EliteDesk-800-G1-SFF:~$