I have a 4 in 1 Lexmark printer. Been working fine till a few days ago. When I turn the printer on the paper feed starts up, although it doesn't pull any paper through. It then shuts down and the light starts blinking. I tried just putting one piece of paper in the tray to see if it would grab it and complete the cycle. No dice. I checked the software program and there are no printing jobs in the que.(spelling?) I checked the connections at the printer and on the tower and all seems OK. One time I got a message that the computer could not communicate with the printer. I did the suggested trouble shooting items including powering down the whole system and re-booting but still the same problem. Any suggestions please?