8625 All-in-one cannot connect to scanner

[RyanMo]

No matter what I do, I cannot get this scanner to work.  I have tried everything the online troubleshooter asked me to do (change USB cables, use a different port, install HP Smart, install Windows Scan, download new drivers, etc.) - hours doing this.  Print function works fine, so I know the printer is connected to the computer.  There has to be another answer.

[sandytechy20]

@RyanMo

Welcome to the HP support community.

I understand that you are getting a scanner connection error,I am glad to assist you.

Use HP Print and Scan Doctor (Windows)

• Use HP Print and Scan Doctor on your Windows computer to help diagnose and fix printing and scanning issues.
• Make sure paper is loaded in the main tray, and then turn on the printer.
• Download HP Print and Scan Doctor - Printer Offline, and then follow the prompts to install and open the tool.
• On the welcome screen, click Start to select your printer and run the diagnostic.
• If your printer is not found, click My product is not listed, and then follow the instructions to troubleshoot the connection.

Check Windows Image Acquisition settings

• Windows Image Acquisition (WIA) allows communication between the computer and scanner. If WIA is not on or running correctly, scan jobs can fail.
• In Windows, search for and open View local services.
• Next to Windows Image Acquisition (WIA), check the Status and Startup Type.

1. If the status is 'Started' or 'Running' and the Startup Type is 'Automatic', WIA is working correctly. No further action is required.
2. If the status is 'Disabled' or blank, continue with these steps.

• 
• Right-click Windows Image Acquisition (WIA), and then select Properties.
• On the General tab, select Automatic from the Startup type drop-down.
• Under Service status, click Start.
• If the Start button is grayed out, return to the Services list and make sure the following services are running and set as Automatic.

1. DCOM Server Process Launcher
2. Remote Procedure Call
3. RPC Endpoint Mapper
4. Shell Hardware Detection

• Try to start WIA again.

Refer to this HP document for further assistance:- Click here

Keep me posted.

If this helps, please mark the public post as an accepted solution so that it benefits several others.

Cheers.