When this happens to me I unplug it from the wall socket as well as the PC then wait a few then try just the wall power again.
There are folk that want to believe the makers send out KILL or Self Destruct commands and I won't discuss that with anyone that believes it.
I have an epson ex-800 printer. I turned it on and it said that I had to turn it off and turn it back on. I did that and the button to turn it on no longer works. I suspect epson software but am not sure and was wondering if anybody else has had an 'adventure' with an epson printer. I also suspect it has something to do with the waste recepticle.