HP Officejet 4620 "Turn the power off, t" error

[KendallByrd]

I'm sure the problem will return. I have updated everything and the problem continues.........

[jc1974]

happened again to me now.

I have all  updated with the latest firmware. 

i have no voltage regulator.

[ALMOGA]

plug a USB cable on the printer!

It will never show that error again!

[rubedee]

usb didn't change anything for me.   Still annoying 

[earnestparker2]

I am/ have been having the same problem since I bought this machine. I would like to know how to fix it as well, PLEASE!

I am still having the same issue.....HP please help us.

[rubedee]

Nothing has changed for me and I have tried all the suggestions--except replace the printer.  For sure, I'll consider that !

[jc1974]

Today my printer showed this message 4 times 😞 extremely upset at HP. no solutions in years

[jc1974]

I wonder if any HP "ex-employee" who wont be afraid to loose his job by telling the truth could shed some light on this problem

[chilli1327]

I uninstalled the printer from my PC.  I made sure the driver was removed as well.  Deleted any HP folders and made sure any trace was gone.

Then I re installed the printer, and before I did anything else, I downloaded the latest firmware and I haven't had this issue since.

[GordonCameron]

Not sure if anyone is still following this thread.  The way I fixed it was unplugging it from the wall socket and pluggin back in and immediately pressing the ON/OFF Button and the "0" on the number pad for about 30 seconds - this seems to have caused a soft reset and then I pressed the ON/OFF BUtton and it then went through a normal shut down.  I then swtiched it on again normally an it seems to work fine.  Important to do the reset immediately after plugging back in otherwise it was switching the power off.