Can't remove printers - Ubuntu 16.04

[rikona]

Hello Bob,

Wednesday, September 28, 2016, 11:32:47 PM, Bob wrote:

> ** 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.

Interesting.... I disconnected the old box, rebooted the new one, and
the printers did not even appear - no need to delete them. BUT, when I
reconnected the old box and rebooted, they were there again, and could
NOT be deleted, as before. Not a significant long term problem, since
the old box will go, but it would be nice to know why they can't be
deleted. Ubuntu is perhaps too good at finding printers. :-)))

Thanks for the info!

-- 

 rikona