cupsctl WebInterface=yes

I am unable to access the CUPS Web Interface so that I can change my printer settings, and it's pretty frustrating!

I am using OS X 10.9.4

If I go to http://127.0.0.1:631 or http://localhost:631I get the following error:

The web interface is currently disabled. Run "cupsctl WebInterface=yes" to enable it.

I have researched this on the web, and have found, and followed, various articles containing the following instructions to resolve it:

• Enable the root admin account
• Log in using the root account
• Open Terminal while logged in as the root account and enter the following:
  • cupsctl WebInterface=yes
  • sudo cupsctl WebInterface=yes
• I have receive the following message in Terminal when running these commands:

  cupsctl: Internal Server Error

• I have restarted my Mac and ran them again and received the same error messages.

As I mentioned, I am still receiving unable to access the CUPS Web Interface.

Please help!

References:

Enabling and using the "root" user in Mac OS X

Can't Change CUPS Settings on Mac:

http://superuser.com/questions/183553/cant-change-cups-settings-on-mac-os-x

Enabling the CUPS Web Interface on OS X 10.8

http://definitebounds.blogspot.com/2013/03/enabling-cups-interface-on-osx-108.ht ml