Don't Worry the HP printer are deisgned to connect without the surg protector.
Try the steps mentioned bellow
Unplug the power cord from the All-In-One as well as the power outlet when there is still power in the All-In-One. and wait for atleast 1Min
Plug the power cord directly to a wall outlet without surg protector. (if possible connect it to a different power outlet)
Before connecting the power cord to the All-In-One press and hold the # and no 6 button and then insert the power cord, do not release the keys
until you see a message a reset (if the screen goes blank then release the keys and turn the power on)
If This does not work in the power cord you will see a rectangle box like thing thats a apdptor, after plugging it to the power oulet for a couple of minitues, check and see if you can feel any heat in the adaptor if yes then the adaptor is good the power cord may be bad, so accordingly replce the power cord or adaptor:
For HP Parts check the link bellow:
http://partsurfer.hp.com/cgi-bin/spi/main
Good Luck
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