>I don't have a problem with certified products having chips, it's locking out third party products that do not have the chip that I would find troubling.
Oh, but they won't do that. Not initially, anyway - that would lead to too many returns. They'll just display a message, which you need to dismiss before using the machine (every single time) that there are non-
genuinecertified materials being used. Of course, this will also invalidate the warranty, and the fact it's happened will be stored on non-volatile memory.
A few years down the line, of course, there is a chance a firmware update might change that behaviour, but only after the items are out of warranty anyway. So, on 28 September 2019, you might suddenly find the printer stops working for all consumables without that chip. HP will of course look into this, while locking down any threads requesting answers and failing to respond to any enquiries.
But that's not DRM, of course. That's to enhance the user experience, ensure the product's optimal functioning, and the safety of the equipment. Nothing to do with the current 2D printer situation.