Xerox these days still make photocopiers, but they also work as really nice printers and network connected scanners.

I imagine a lot of their employees are in the service division. When you buy a high end printer it also comes with a service contract where someone will proactively come and do things like clean the printer and make sure toner is stocked.

I work in a building next to a Xerox rented building. Apparently Xerox does a lot of government contracting. They bid on government IT contracts and hire people to work on them.