> By installation media, I guess you mean the version 2.9 package contents.
Nope, I meant the media that came with your printer when you bought it; can you determine from it which version driver you may have installed? (Actually, I'm not at all certain that the info will be the least bit useful.)
It's curious that one source says you need an update and another doesn't...or maybe not so curious considering the former source.
Chances are that you've got a pref pane in which you can opt out of automatic update notifications...kick the annoying issue into a closet until it becomes a functionality issue (hopefully never).
On the other hand, if you're running Little Snitch, you should be able to determine which rule is allowing the update inquiries to connect and to disable it.
