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Solved!

OfficeJet Pro L7780 All-in-One crashes: Improper Shutdown

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Since a few days my 4-year old L7780 (Product Number:   C8192A, Serial Number:   {Personal Information Removed}) continuously crashes. The display shows a red and blue screen, overlaid by a white on black message "Turn power off then on again". Pressing the power button results in an error messages that indicates an "Improper Shutdown".

 

Repeating the power-on procedure a couple of times (sometimes the following self-test enables the printer again, sometimes it doesn't and immediately crashes again) eventually re-enables the printer - yet only for about 5-10 minutes before it crashes again. During the period when it is online it works perfectly fine.

 

Print Doctor v4.0 doesn't find any error. The printer and Solution Center complain about an expired (but full) ink cartridge.

 

Any idea what's going on?

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Here is a link that addresses  the error message that you are getting on your printer. It will provide you with troubleshooting steps to take in an attempt to correct the issue and clear the error message. 

 

Also, make sure that the device is plugged directly into a wall outlet to ensure that it is getting the proper amount of power. The device has a built in surge protector and does not need to be plugged into one. Even if it has always been plugged into an extension cord or surge protector and has never given you an issue before, the device can develop a problem over time. 

I am a former employee of HP...
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Thanks - it took me quite some time to go through all the steps multiple times and connecting to a different power outlet finally seemed to have solved the problem.

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