It's a wedge used with the 220ml cartridges to trick the printer that the ink tank cover is closed. Anybody knows the name of this device, and where can be purchased?
I never joined a group before, I'm doing this now because I expect to gain some knowledge from the ones that know more than me on the subject. I'm a retired photographer, so, now I'm enjoying myself shooting what I want and like, without the pressure of satisfying somebody else.