Hi
You may try the following options:
1. Looks like the connection is not proper, then get "HP Print and Scan Doctor" from the link below and run to trouble shoot:
2. Alternate option to do Scanning:
a. Scan to Memory device, you can use your sd card or thumdrive to perform scanning.
b. Scan using EWS, go to Embedded Web Services i.e. key in your ip address on the browser and you can enter EWS or You can find it via. -> Device and Printers -> Click on your printer -> Click Printer Home Page (EWS)
- Select Scan -> Web Scan
3. Re-install the printer using your inbox SW or download the latest SW from www.hp.com after deleting / uninstalling your current deiver.