Thanks. The HP Scan Doctor report shows everything is fine. Only Microsoft Office 2013 docs won't print- no error message. On the printer, I see a "Printing..." message, followed by a clearing of the document after 4-5 minutes and everything is back to normal (but no document). It's like it just disappears into thin air. Works fine from my Dell desktop and Office 2010.
My guess is that it's something with Office 2013 under Windows 10. For now, I'm just pointing Office print jobs from my laptop to my old HP 8500.