Hmm. It looks to me like the metal with the black goo on it (which is scraped off with a razor in the video) once had a piece of thin foam glued to it. Like many things made out of that type of foam, (i.e. keytronic keyboards, and the anti-noise foam inside certain dec, sun, and other older machines), the foam has turned into sticky goop after a number of years (and probably exposure to ozone inside the printer), causing the solenoid to stick. Just a guess, since I don't have one of those nearby to take apart. -- Jonathan Gevaryahu jgevaryahu at gmail.com jgevaryahu at hotmail.com