Question about HP Officejet J5780 All-In-One InkJet Printer
Please press and HOLD the on/off button next to Scan on your printer for 30 seconds until the printer turns off.
If no luck, I am afraid the printer is locked, so please unplug it from the WALL outlet, wait 30 seconds and plug it back. Let me know if the problem is solved this way.
Posted on Feb 07, 2010
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Posted on Jan 02, 2017
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