'error occurred while communicating with scanner'

[Amiina-h]

Whenever i try scanning using my printer (hp envy 4520), an error message keeps appearing on my macbook: 'error occured while communicating with scanner'. I've deleted and re-added my printer but it still says this. 

[sandytechy20]

@Amiina

Welcome to HP forums, I see that you are getting a scanner connection error.

• Did you add the printer using AirPrint?

If not, follow the below steps:

Uninstall and reinstall the printer driver and software

1. Click Finder in the Dock.

2. In the menu bar, click Go, click Applications, and then open the HP or Hewlett Packard folder.

   • If HP Uninstaller is in the folder, double click it to uninstall the software, and then skip to the step to prepare the printer for the driver installation.

   • If HP Uninstaller is not in the folder, continue to the next step.

3. Click and drag the HP or Hewlett Packard folder to the Trash icon in the Dock.

4. In the menu bar, click Go, click Go to Folder, type /Library/Printers, and then click Go.

5. Click and drag the HP or Hewlett Packard folder to the Trash icon in the Dock.

6. Right-click or Ctrl + click the Trash icon, and then select Empty Trash.

Add a printer using AirPrint

1. Click the Apple menu, click System Preferences, and then click Print & Scan or Printers & Scanners.

   Figure : Example of the Printers & Scanners window

2. 

3. Check if your printer name displays in the Printers list, and then do one of the following steps.

   • If your printer is listed, remove and re-add the printer to confirm it is set up for AirPrint. Click the printer name, click the minus sign  to delete the printer, click the plus sign , click Add Printer or Scanner, click the printer name and then continue to the next step.

   • If your printer is not listed, click the plus sign, click Add Printer or Scanner, click the name of your printer, and then continue to the next step.

4. Confirm AirPrint or Secure AirPrint displays in the Use or Print Using menu, and then click Add.
5. Figure : AirPrint displays in the Use menu
6. 
7. Open a document or photo, click File, and then click Print.
8. Cheers.

You can refer to this HP document for more assistance:- Click here

Let me know how it goes.

To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.

Cheers.