I don't think I have an answer for you about exactly what went wrong, but one thing that can help with understanding the messages (and maybe can help you and your IT people figure it out) is this:
Photoshop saves the information about the last printer the document was printed to as metadata in the document file. So if you make a print then save the PSD, the printer info is in the PSD.
If recently you opened an image that had previously been printed at another place (and which didn't have an exact match to the printer available in your current location), then you can start to imagine these error messages making a bit more sense. Things like "The saved printer information" begin to have meaning.
Hope this helps.
Noel, I hope you are a teacher of some sort because I believe teachers should engage thier students
to learn and you just did. You made me think - how can I reset what this machine is thinking. I opened Photoshop and selected a different profile from one I have ever used here. Then created a new document using another setting I have never used, saved it and closed Photoshop. I then reopened that document and changed the color management setting back to Monitor color, which is what I had been using while it was working and told it not to manage the color and voila! I am now printing again. I have made some documentation notes so that WHEN this happens again, I hopefully have a quick fix.
Thanks for your prompt response - it's people like you that help others grow!!!