I decided to take advantage of your 20% off flush sale, and bought the setup for my 9890. I am an infrequent printer, and in almost 3 years have printed less than 1000 "pages" (according to the menu.) The machine is running fine. No clogs that a simple pair quick clean won't fix. I agitate the inks monthly, and don't go more than 2 days without at least running a nozzle check. Life is good.
OTOH, it -has- been almost three years! So, bought the flush, and will give it a go. Here's my question: given the above, do I need to do TWO init-fills of flush (as you recommend when dealing with clogs) or will one suffice?