Printers & Copiers: Rollers and fuser units

I know I’ve heard that humidity can affect office machinery such as copiers, printers, and even computers.

Does anyone know how much damage humidity or humid paper causes to printer/copier rollers and fuser units?

[i]We’re a small office located in the front area of the plant (Reception Area). During the Spring and Summer on cooler days they open up the front door to let in the breeze. The problem is they also let in the humidity which can be pretty high.[/i]