Just thought I would share this article with everyone
http://www.lifehacker.com.au/2016/09/hp-is-blocking-unoffici….
If you have a HP printer on the list and it hasn't updated, I would be turning off autoupdates quick smart to avoid being forced to buy genuine inks, or having to bin your printer.
Yes, read about this back in March.
Updating your firmware effectively locks you into genuine cartridges untill the aftermarket works out a work around.
Problem is, take a look at all the cartridges listed as compatible on eBay.
The last 2 sets of cartridges we have purchased for our 8620 have been rejected by the printer.