How to leave the Rename Printer dialogue without renaming the printer
I tried and just like what you said, if you don't change the printer name then you can not change the location field neither.
Without renaming the printer, there are two situations:

The &quot;Location&quot; is not changed. Then just leave the dialogue by click the &quot;Cancel&quot; button.
The &quot;Location&quot; is changed. As far as I know, you have to rename the printer name then you can change the &quot;Location&quot;.

Once entered the Rename Printer dialogue, you can always exit by clicking the &quot;Cancel&quot; button.