I have an M2 that sat for a while due to it having issues. I'm now ready to get it back up and running. I've replaced the printer head, replaced all the ink lines and everything seems to be doing great up until the point I try to do a test print or nozzle check. I can't get the machine into print ready mode. It always goes back to cover open. I need help getting this thing rolling. I'm in Washington state so I'm not close to a service center. I will probably have more questions as I move forward, but this is a good place to start.