Makes me want to get my printers back! Slung 'em all out!
I was blowing window cleaner through a pipe and watching the tiny holes in the print head of my Epson 5600? (had so many can't remember which one) when the phone rang. It was Epson. At 18 months they started a long procedure of replacing printers. None of them were any use after a few weeks.
Anyway, back to me blowing into the plastic pipe. I'd tried various things and the blue window stuff was the best. One could see the results - the head removed, obviously.
Minute amounts of debris and then fluid came out of the holes. A watchmaker's eyeglass required. Then, all I had to do was blow the fluid out ready for the ink. The first pages looked a bit odd but smelled nice.
