Question about HP Officejet Pro L7780 All-In-One InkJet Printer
Dear the message is due to your paper load pin is not working properly , due to this reason everytime printer will give you RED colour LED indication that paper is out. just open the cover and do a printer service. remove all dusts/particls from the printer .
i hope this will help you.
Posted on Jun 30, 2009
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Posted on Jan 02, 2017
Tips for a great answer:
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Mar 14, 2011 | Office Equipment & Supplies
If you receive an "Open front cover" error message the solution is to open the cover and remove the paper and any remnants of the paper jam. If there is no obvious paper remnants jamming the printer and you continue to receive an error message I would suggest unplugging the printer from the power source.
After 5 - 10 minutes plug in to power source.
Turn on printer.
See if this has resolved error message. If not you will need to check more carefully for paper remnants that would be causing the printer to detect a jam.
Trust this is helpful. :)
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Please check rear door area for paper, can you use manual feed slot? Power off machine with all jams removed and paper loaded, then power on, can you tell us exact error message/lights that are shown in this state?
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