Question about HP Officejet J5780 All-In-One Printer
I have a HP J5780 all in one that suddenly keeps flashing with the error
'turn power off then on'
when I do this on the machine, or power point, etc, the error just keeps re-appearing. As we are a business, we do rely on our fax a lot so it would be great if you could help
Once power cycle the all-in-one to remove the static power in the all-in-one.
Perform below steps to power cycle the all-in-one.
Posted on Jun 04, 2008
May be try to check ur cartidges or replace them with new ones or check out if there is any paper jam.
Posted on Jun 04, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
Jun 21, 2015 | HP Officejet J5780 All-In-One InkJet...
Simply UNPLUG YOUR COMPUTER FROM THE POWER SUPPLY.
Yes that's it! Note that this does not mean just turning off your
computer because modern computers don't really turn off when you press
the power button as the motherboard still gets power.
First to explain, the motherboard is where all of
hardware of the computer is connected to, including the USB ports.
Sometimes the motherboard needs to be "rebooted" also because something
can go wrong, i.e. all your USB ports suddenly stop working. The small
microprocessor on the motherboard will reload the drivers and your USB
ports should be back to recognizing all devices!
So first turn off your computer using Shut Down or
pressing the power button and then UNPLUG it from the wall outlet. Let
it sit for about a minute and then plug it back in.
Hope this helps someone fix that pesky "USB device not recognized" Windows error!
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