@HypDev@Nadia4114@HypDev I also have not been able to to contact anyone at Hyperiondev. 2 emails and chat support on your website for well over a week and not a single reply.
@HPSupport I installed brand new M C Y cartridges today, I print 18 pages in black with grayscale turned on. Look how much coloured ink was used! This is intentional so I have to buy ink more often. Those bars were full. Really dissatisfied.