I have a Lexmark X5470. It works great, and I'm very happy with it. However, something very strange happens every now and then when the power is off. At any given time, the printer will start up on its own for about 30 seconds, making the sounds of the cartridge shifting, and then it stops. This has happened in the middle of the night as well as during the day. It occurs whether my computer is turned on or not. ( I only turn my printer on when I have to use it).
Is this a power surge of some kind, or does my printer have a bug?