It wouldn't be a stretch to commission a modern secure Kindle DX for document handling. The rule wouldn't be no printers ever. It would be no exfiltration of secret materials. That stuff doesn't need to be handled in a sheaf of papers. Everyday non-secret (ie low impact damage) material can continue as is.

DoD contractors are under heavy scrutiny and face severe repercussions for leaks. They've been operating this way for decades.