FAX - "The phone cord is connected to the port labeled "2-EXT", actually connected to the "1-LINE"

[JBrown5378]

FAX - Error Message in setting up fax -"The phone cord is connected to the port labeled "2-EXT", but actually is connected to the "1-LINE".  Any Suggestions?

[Anand_Andy]

Hi @JBrown5378,

Welcome to the HP Support Community

I understand you are facing an issue with your HP OfficeJet Pro 8720 All-In-One Printer. Not to worry I will help you to get a resolution to resolve the issue.

Let's perform a power drain: 

• 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 (This is important) 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

Update the printer firmware 

• Click here to download and install the latest printer firmware from your product
• Click here to know different methods of updating printer firmware.

The Active telephone line directly from the wall outlet should be connected to the Line-1 port on the back of the printer and the EXT-2 is used to extend the connection to your regular telephone.

If the issue persists, then please refer to this video: Setting Up a Fax Connection with an HP Printer

Hope this helps! Keep me posted. 

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