I'm a little freaked out by this. We were sold this machine from Michigan Office Solutions (MOS) which, we've been told, is owned by Global Imaging which is owned by Xerox. We were told that buying from Michigan Office Solutions is as close as you get to buying direct from Xerox if you live in Michigan. There used to be a direct-channel with Xerox but now Xerox has set up a branch in each state (or multiple in some states) that handles what are considered "direct sales". These "branches" are former third-parties that Xerox bought out and turned into direct sales branches. On their website they say "Michigan Office Solutions, a Xerox Company"... so I guess that sounds right.
Just looked at the ComDoc website because I had never heard of them. They say "ComDoc, a Xerox Company". Hoping we don't end up in the same situation you did.
EDIT: Just called the Xerox Service Department... Not sure how much she really knew about what I was asking but she told me that now you can only get a service agreement with a reseller. She said it's a recent change they made. I said "yeah, like a couple years ago right?" She said "no, more recent than that" She said that a couple weeks ago all of their service team left so they are trying to figure out what to do and one of their solutions is to have the resellers do all of the service.