Leaving the Z almost always on, but sometime not printing for several days, I let my CC Wear cotton cover (excellent products, by the way, and very nice people in SF ; we have several for screens, etc.
www.ccwear.com) on it to protect it from dust and direct sun.
The cover doesn't really block air flow.
Is there a risk of heating or something ? (I didn't feel any heat, but just asking).