Acho que esse segmento contém a resposta para sua pergunta .
Yes, because the SYSTEM installed it, so this is the owner of the object, take a look inside the registry, the ACL on the printer connection inside HKCU should be set to owner=system.
Change Printer deployment from "publish printer" (which is rubbish by design) and use GPP Printers. On the common tab (every common tab) of the user configuration you can check: Run in user logged in credentials
If the use creates it, the user can delete it.
Mark