Can't remove printers - Ubuntu 16.04

[Bob]

** Reply to message from rikona <rikona at sonic.net> on Wed, 28 Sep 2016 22:45:18
-0700

> When I finally got the UEFI problem straightened out, the installer on
> the new Ubuntu box did a good job of tracking down printers on our
> local net, but it did so by using all of them shared by the old Ubuntu
> box. They all came up working fine. 
> 
> The problem is that the new box is going to replace the old box, and
> so I had to install the printers on the new box. That went well - they
> all worked on the new box as direct connections for those printers.
> Since the old box was going to be removed, I tried to delete the
> printers that were tied to the old box. The "printers" GUI has an
> option to delete printers, but it didn't work for any of them. It
> looked like they were deleted, there were no error messages, but the
> icon and the printer were still there. I then tried accessing CUPS via
> localnet/multiple browsers, which also gave an option to delete each
> printer using CUPS, but that didn't work either. I tried using sudo
> [some browser] using CUPS, but that also didn't work. I tried using
> sudo lpadmin - that did not give an error message, but also didn't
> seem to delete the printers. Although, after using lpadmin, I did get
> two error messages in the "printers" GUI when I tried to access the
> properties:
> 
> Option 'orientation-requested' has value '0' and cannot be edited.
> 
> and
> 
> Option 'print-quality' has value '0' and cannot be edited.
> 
> But, even with these error messages the printers were still there.
> Also, it seems that these printers are set up as "classes". In the
> CUPS/browser interface is also an option to delete printers from
> classes, as there is in lpadmin as well, but I could not delete these
> either, even using sudo access.
> 
> So, at this point I'd like to learn how I can actually delete these
> printers that will not be there when the old box is removed.

I had the same problem.  My girlfriend needed to print a small book for her
family and her printer quit working so I took my printer to her house and
connected it to her LAN.

Since I had been trying to delete two remote printers without any luck I tried
it at her place.  Connected to her LAN (of course my server with the printers
were not on her LAN) the printers deleted without any problems!  So I would
guess that just removing your computer from your LAN and rebooting you will be
able to delete the printers.

-- 
Robert Blair


A government which robs Peter to pay Paul can always depend on the support of Paul.  -- George Bernard Shaw