Over the past few months:

* Printing tax forms (even if you do them electronically it is much easier to have a file folder of all your info should you get a query from the government) * Printing homework or practice questions for my kids * Printing registration forms for the many places that aren't computerized * Faxed identification for various purposes * Faxed contracts for real estate * Scanned documents and identification for people that accept them over email * Scanned expenses

And that's not including my wife's use of it, who is a student and will regularly print off stuff to mark up by hand.