Help me name this Xerox model

[Joe Arseneau]

It's in the comments, Xerox model 4000

http://www.businessinsider.com.au/xerox-growth-in-bill-gates-favorite-book-business-adventures-2014-...

http://community.ebay.com/t5/Antiques-Anonymous/WANTED-old-Xerox-4000-copier/gpm-p/17705967

[Xerox6085II]

Which model Xerox copier is seen in this commercial?  My seem to recall this might be a model 3400?

Xerox Commercial & Process Mapping

https://youtu.be/y99qrVTyZZk

Thanks

Don Resor

Los Angeles