Sterling,
Thank you for trying.
1. The printer is fine. Ink/toner are adequate, there are no issues of that sort. There is no driver installed.
2. The printer is connected. The cable is working. There is no driver installed.
3. Using the Software update finds no applicable updates, perhaps because There is no driver installed.
4. There is no reason to Open the Print & Scan pane or Print & Fax (Snow Leopard) pane in System Preferences, since I did that before posting, yet to humor you, I am doing it again. There is still no printer installed there. Possible because There is no driver installed.
5. I cannot delete something that is not there. There is no driver installed.
Since the issue is persistent:
1. I'd be glad to reset if there were instructions for my OS (Mavericks 10.9.1 as listed on the OP) The instructions go up to Mountain Lion.
2. See immediately above. If I could download or install my printer's drivers, I wouldn't be posting here. I've never been able to successfully add the printer yet. There is no driver installed.
3. The printer vendor, in place of a driver, has a link to the Apple App Store, which is why I am getting snarky here instead of the Epson web site. When I followed their directions, I got info on updates I have recently installed, and then today I got an update to another unrelated piece of software. I have not seen any recommendations for drivers for my printer.
I am surprised that using the migration assistant produced no trace of the curently selected default printer from the migration source in the migration taget. I'd have thought that would be a inimal requirement for a migration. How silly of me.
My work around currently is to print via a Windows machine. Obviously, this is less than optimal. I'd like to be able to print and scan from my snazzy new MBP on the Epson All-In-One printer(NX420). I hoped I'd get some help here. Is that unlikely?
I appreciate you taking the time to try and assist. I hope this has clarified why I am so disappointed with the level of support, so far.
Thank you for your time.