> You very often also need some backchannel from the printer, e.g. for toner levels Fine. That runs in a separate sandbox with access to the printer and the ab

> You very often also need some backchannel from the printer, e.g. for toner levels Fine. That runs in a separate sandbox with access to the printer and the ability to display a UI. No other privileges. > Printer manufacturers also don't think like this. This is irrelevant. The whole article is about MS forcing a certain model on printer manufacturers.