Lexmark Printers again, o dear. LEXPPS.exe is a program which talks on the internet. I'm not sure what it is saying to who, but if you fail to give this program a connection, it will wait until it gets through. Lexmark technical support will say "delete it" and yes, it will work, just as long as it's not connected to a network. An easy fix is unplug it from all sources of power. Count to ten. Plug it in. This is one of those "smart printers". It has a power switch. When the software is working correctly, it tells the computer that it is to power off when it has a chance. But such a function isn't genuine. It tells the computer to also watch the buttons, so that when you press power once again, it should "power on". As your see, the printer is always on.