Successfully unclogging a 19 year old Epson PRO 3800 that sat idle for several years.
Well done, Bruno, that looks like a lot of work and a lot of cleaning fluid.
I just dug out my old R3000 and converted it into a pure black-and-white printer with a set of black inks. Everything worked fine for a short time, but now it's starting to smear black blobs all over the paper.
Sometimes I think I have bad karma when it comes to printers—but maybe I'll give it another try with a new printer, we'll see.