The scanner on my HP OfficeJet Pro 6978 suddenly stopped working.

[Jooyce3202]

When I try to use the scanner, I get an error message stating "Scanner reported an error - an error occurred while communicating with the scanner".  The printer and copy functions work fine and the green bar that scans across the glass plate is functioning when i copy a document.  I tried unplugging from the power source and that didn't cure the issue.

[Andr-1611]

Hello @Jooyce3202,
Welcome to the HP Support Community!

Try first this:

1. shut down printer via on/off switch
2. shut down the computer
3. switch off the router
4. wait about 60 sec.
5. switch on the router, wait until the router has completely initialized itself again
6. Switch on the printer, wait until the printer has finished its initialization
7. switch on computer, log in (with admin rights) and wait about 10 sec.

... and now everything's working again?

If that doesn't help, here's what you need to do:

1. Uninstall HP printer software, and then remove the printer from your Devices list. 
2. Restart the PC
3. Close all programs
4. download only this complete package: HP OfficeJet Pro 6970 All-in-One Print and Scan Driver and Accessories 
5. Close all programs
6. Open up the run command with the "Windows Key + R" key combo > in folder Downloads double-click on the EXE
7. The installation was completed successfully, now you must ...
8. Restart the PC again
9. Now the installation is complete.

Document error messages accurately, even better is to take a screenshot of it and upload here.

Kind Regards
Andr-1611

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