HP Officejet Pro 8720 scanner function not working

[NavalGunner]

I had my Officejet Pro 8720 for a while. It used to work well but suddenly it wouldn't work and so I searched online and found out about the WIA. When I checked my WIA status, it didn't show anything so I tried to start the WIA. But it wouldn't start so I tried uninstalling the HP Officejet Pro 8720 software and when I checked the WIA status, it showed running. Then I reinstalled the HP Officejet Pro 8720 software and I kept my eyes on the WIA status. It seemed like it would work but now it seems like the HP Officejet Pro 8720 is having a conflict with the WIA because the WIA doesn't have a status and it won't let me start the function. Any help would be most appreciated.

[Jeet_singh]

@NavalGunner,

Thank you for showing your interest in HP Support Forums. It is a great place to find the help you need, from other users, HP experts, and other support personnel. I see from your post that you are having issues while scanning from your HP Printer. Don't worry we'll work together to help you find a solution.

To provide you with an accurate solution, I'll need a few more details:

Have you recently made any changes on the printer before the issue started?

Does that Scanner bulb light up?

Does the scanner bar move when you open the lid & press the copy button?

Have you checked if the unit can make a standalone copy? If ‘YES’ then it means the scan hardware of the All-in-One works fine.

Did you try to scan using HP Scan and capture App? If you haven't please click here for Instructions.

In the meantime, let's try the steps here: 

Perform 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.

Let’s first try and make a “photocopy” to determine whether the issue is with the printer or not. Place a document on the scanner glass and choose “Copy” option. If the printer is making a good copy, then the printer hardware is fine.

Next thing, I would also suggest here is to update the printer firmware. You can either do it directly from the printer control panel or you can download the printer firmware from our HP support website.

For more details, please go through this support link: HP Printers - Updating or Upgrading Printer Firmware

If the copy comes out fine, then the next step would be to do a clean install of the printer drivers. 

First, unplug the USB cable from the printer if present.

Go to Control panel – Programs and feature – Select all the HP OfficeJet printer entries and uninstall them.

Now go to Control panel – Devices and printer – Select all the printer entries and remove the device.

Press the "windows key" + "r" to get the "Run" window open - Type "printui.exe /s" (There is a space between .exe & /) and press enter.

Under print server properties, go to drivers - remove any entry there as well.

Again, go to the Run window, type – “c:/programdata” – Go to Hewlett Packard folder, remove any printer related folders & files.

Restart your computer.

Now click on this link: https://support.hp.com/us-en/drivers (Please enter the product number and then select the Operating system and version of Windows before downloading and installing the printer software.

Connect the USB cable if prompted and follow the on-screen instructions to complete the installation.

I would suggest you use HP Scan and Capture application to scan using your Windows 10 system. HP Scan and Capture is a simple application that captures photos or documents from an HP scanning device or your computer's built-in camera.  These images can be previewed, edited, saved, and shared to other applications as well.

Go to this link to download and install the Windows Scan and Capture app.

Could you please respond to this post with the details and with the results of the troubleshooting as this will help me in further assisting you.

Eagerly waiting for your response!

that said, If the information I've provided was helpful, 

give us some reinforcement by clicking the solution and kudos buttons, 

that'll help us and others see that we've got the answers!

Good Luck.