HP Deskjet 2545 - Device password forgotten - Factory reset needed

[abmex]

We switched wifi routers in the house recently. Now I'm trying to connect the printer via wifi but it keeps asking me for an administrator device password which I have forgotten. I'm not talking about the wifi password, I mean the printer admin password to save the new wifi settings.

How do I perform a hard reset to factory defaults to start over?

[Jeet_singh]

Hi @abmex,

Thanks for engaging in HP support Forums! This is a wonderful location to converse with the community, get assistance and find tips! I came across your post and wanted to assist you. I understand you are having issues after switching to a new router. Don't worry as I have a few suggestions which should help you resolve this issue.

Let's start off by performing a Hard reset on the printer and make sure that the printer is connected directly to the wall outlet and not to the surge protector.

With the printer turned on, disconnect the power cord from the rear of the printer and also unplug the power cord from the wall outlet.

Remove USB cable, if present.

Wait for 2-3 minutes, press and hold the power button on your printer for about 30 seconds to remove any additional charge.

Now plug back the power cable straight to a wall outlet without any surge protector or an extension cord and then plug back the power cord to the printer.

Turn on the printer and wait till warm-up period finishes and the printer is idle.

Next thing, I would suggest here is to perform a restore network defaults on the printer. 

In order to perform a Restore Network defaults, please follow these steps here:   Press the Wireless button and the Cancel button from the printer control panel at the same time, and then hold them for 5 seconds.

Once done, please follow the steps suggested in the support document for setting up the printer. Setting Up Your HP Printer on a Network with Apple AirPort

Alternatively, you can try to perform Reset printing system in Mac

• Click the Apple menu icon, and then click “System Preferences”.
• Click “Printers and Scanner” / “Print and Scan” or “Print and Fax”.
• Right-click the blank space in the Printers list, and then click “Reset printing system”.
• Click “Reset” in the confirmation window.
• Enter an administrator username and password, and then click “OK”.
• Wait until the printing system is reset and no devices show in the Printers list

• Restart your computer and then go back to System preferences – Printers and scanners.
• Click the “Add button” (+).
• Find, and then select the name of your printer from the printer list, and then click “Add” to add your printer.
• Click “Print Using...”, and then select the name of your printer (By default “Airprint” would be selected)

For more assistance, please follow this link: HP Printers - Changing from a USB to a Wireless Connection

I hope this helps. Let me know how it goes for further assistance.

Feel free to post your query for any other assistance as well,

It's been a pleasure interacting with you and I hope you have a good day ahead.

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Regards,