Question about HP Officejet J5780 All-In-One InkJet Printer
I was having this problem as well. HP has a tutorial on this problem:
However this document stopped just short of solving my problem. When I got to step 3, I found that the metal lever referenced in the document was missing from my printer. I have no idea what happened to it. This metal lever, when present, depresses a contact switch when the cover closes and permits the printer to function. If the metal lever is absent, the contact switch is not depressed and the printer believes the cover is still open.
However, the instructions don't say what to do when the metal lever is missing ... other than service the printer.
HP technical support was no help. They advised me to buy a new printer. However, I discovered a work around: I unscrewed the two screws in the top of the cover and placed a dab of sticky tack on the contact switch. Then I put a carefully folded square of aluminum foil atop the sticky tack. When I screwed the cover back down, this arrangement pushed down on the contact switch and the printer resumed function.
Hope this information helps you.
Posted on Jun 10, 2010
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Posted on Jan 02, 2017
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