My printer is HP LaserJet MFP M477fdw. It is 5 years old. Received error message "Jam in print paper path. Open rear door and clear jam." Did this and removed one piece of paper from rear. Restarted printer but error message still shows. Checked rear multiple time and no obvious signs of large or small pieces of paper.
Things I have tried: 1) Restarted multiple times. 2) Removed and reattached power cord. 3) Plugged power cord directly into wall socket. 4) Updated firmware. 5) Tried print and scan doctor.
Thank you for your prompt response. I tried your suggestion and was able to lower the duplex tray but there was no paper visible. I restarted the printer and got the same error message. Any other suggestions?
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