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After running an (initial fill) with internal cleaning solution and many many cleanings I am still missing the center of my Yellow channel. There also seems to be some overlap on the Yellow channel as well, I have uploaded a jpeg of my most recent nozzle check. I am going under the assumption my...

There are a number of internal cleaning solutions on the market on can fill into empty ink cartridges to clean Epson k3 /Ultrachrome inks. Most of these solutions are priced in the stratosphere commanding $200 dollars or more per gallon. I am hoping someone knows the formula for making their own...