Lost password - M401 of printer HP LaserJet Pro 400 series

Hi all

We have a years M401 of printer HP LaserJet Pro 400 series(touch screen model), a fo our former employee requested a password. Nobody knows this password and need to change the IP address of the printer.

I'm looking to do a factory reset. What I found on the user guide, the procedure would be:

Restore the default values set in the factory (touch panel)
1. from the home screen on the product control panel, press the Setup button.
2. highlight and press the Service menu.
3. highlight and press the default button and then press the OK button.
The product automatically restarts.

The problem is that when I touch "service" menu, the password prompt prevents me from going to the next menu. Is there another way to do a factory reset on this printer? A button physics somewere? Something to do with the power button may be?

Thank you very much for your help!

Oliver

I found how do:

After a the NVRAM initialization, reconfigure all computers that print to this product so that the computer can recognize the product.

Tags: HP Printers

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