Cats Using Printers... Say What?

So I hear my printer turning on in the other room and I go to investigate. My cat turned it on and was laying behind it to get warm. wtf?

And that actually wasn't the first time I have ever heard the printer coming on, seemingly all by itself. I always thought it was my son or something. I was so surprised I didn't even think to get a picture. IF the cats want extra heat, they can pay the utility bill...  dammit!