I find it rather interesting that a secondary cart filled with Piezo Flush stored in original packaging, a battery replacement chip stored in original packaging, and a MK cart used in the printer goes bad all at the same time. RH here is rarely below 50% in the winter, great wet Pacific Northwest.
I purchased 2 entire sets of carts, plus an entire set of replacement chips, already! They did not work. I just placed a new order for new set of replacement chips, rather expensive for such a tiny component. I bought into the marketing speak and bought the first set of replacement chips and was never able to make use of them. Sounds like these chips need a better engineering design that is of quality, especially for the cost.
Why would a single MK chip make the entire right hand side fault?