Ugh! Paper got jammed, so I pulled it out. My printer has not recovered. The on/off button is flashing on and off and there is an alarm light flashing alternately with the on/off light. Error code is 5700 on the screen. I have done everything (checked for paper still inside, unplugged for a while, unplugged from wireless device, held on/off button down for a few seconds, checked online for help) but call the service people. Anyone have a guess? Please? I need to send out an invitation to my Spring Product Preview show, today.