It seems I have to power-cycle my printer daily (sometimes multiple times per day) because it locks up. I send a print command and nothing happens. Normally, when the printer id functioning properly, simply pressing the power buttin will shut it down. But when it's in this "frozen" condition, I have to hold the power button down for about 3-5 seconds to get it to shutdown. Then, when I power it back up, the print queue prints and everything is good... until the next time it has to be power-cycled.
I just updated firmware yesterday, so it's not that. I have seen others claim to have the same issue. What's going on? The printer is connected via ethernet cable to the router. But, again, the fact that I have to hold the power button down to cycle it tells me that the issue is definitely in the printer and not in the communication to the printer.