Incredibly I still run an Epson Stylus Pro 7600, built like a tank. It is 18 years old. I was just informed by my supplier that the "UltraChrome" inkset for these printers including the SP4000, SP 7600 and SP 9600 is no longer being manufactured and is limited to stock on hand which from my internet search is in very short supply. Some that do have stock are charging exorbitant prices
This will probably affect very few on this forum, my supplier only has one other customer with a 7600, but thought you might like the heads up.
It pains me to think I will have to toss this great printer because of lack of ink. Head clogs are kept at bay with periodic application of Inkjet Cleaning Fluid CLF-007P. B&W was handled well by Quadtone RIP software. Amazingly no clients have complained about dot size or lack of shadow detail

I work out of a really small office, getting a SP6000 series printer in here, 6" longer and slightly deeper, will be a problem
RIP (pun intended) Ultrachrome