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HP OfficeJet 4500 – Turn off Power Save Mode

So recently I came across an issue where my HP OfficeJet 4500 would constantly go into Power Save mode. However while it is in that state, I can't wake it up when I want to print something. It started to get on my nerve quite a bit, so after a bit of research, I found that it was an issue with the Power Save Mode.

Now there is no way of turning it off from the main settings, so in order to turn it off, you need to do the following steps:

Press * and # at the same time on the Printer.

You will then see a screen full of *'s and #'s.

Press 1, 2, and then 4 buttons in sequence.

You will then see "Underware MWM..."

Press the left arrow key twice, and click OK.

Press the left arrow key once, you will see the option "System Mode Timeout" - Click OK

This option will be set to 1800 by default, so all you need to do is press 0 (zero), and click OK.

Then click the X button twice to go back to the main menu.

This should remove your Power Save Mode.

I haven't come across much problem with the printer since, so I guess it worked. Hope this helped you as much as it did for me!