Yes, I have cleaned it and the print head too
just swabbed them with a damp cloth
Oh sorry, forgot to answer that, no they are refillable ones. I have two sets and changed the old one to a new one
Also should have said, I replaced the old one because it wasn't working, rather than it just not working on the new one
I actually use edible ink in this printer, so can't use genuine cartridges.