http://theoatmeal.com/comics/printersInstantly came into my mind.
It's just scheduled, no matter whether it's in standby or not. It should probably have an option for it somewhere. If not, consider moving it to another room and/or pulling out the plug completely at night.
why did I read this as"The Daedric Printer of Alduin"ive been playing too much Skyrim aaaaaaaaa