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Microsoft to kill off third-party printer drivers in Windows
(www.theregister.com)
This is a most excellent place for technology news and articles.
They'll just bake that logic into the printer directly
Yes, but for be able to turn off the printing function if you stop the subscription, they need to have the printer communicates with their server. If the user uses USB it won't be able to. But they can make an Internet connection mandatory either WiFi or ethernet even if you use USB.