I have an MB 2120 that's about 23 months old. I leave it turned on all of the time. It's winter here so it's unusual to have thunder storms, but we had one. It was at night and wasn't severe and our power wasn't out as far as I can tell. In the morning when I came down the lights were off on the printer. Pressing and holding the power button didn't turn it on. Tried a different outlet, plugged and unplugged the power cord briefly, all without effect. I ran across thread in a forum elsewhere on the net and it suggested unplugging the cord for at least a minute. Bingo. That did the trick. I got lucky and am posting this as a potential aid to someone else. I couldn't find a similar thread on the topic here at PrinterKnowledge. There is a thread elsewhere where some owners pulled the power supply out of their Canon (non-Maxify) printers and gave some additional data on troubleshooting power boards. The thread is located here: https://www.techspot.com/community/topics/printer-wont-power-on-tried-everything.167464/ Good luck for others who encounter this problem. Anybody else here have this experience and come up with a different fix?