HP SMART cannot recognize my Office Jet 6978 to install it. Worked a couple of weeks ago.

[JimP19]

HP SMART used to work fine with scanning photos and documents. Recently I opened to scan some documents and found I didn't have a printer connected. Tried to reinstall it but HP SMART failed to find my printer. I trie using HP Scan & oc but it didn't help.

[KrazyToad]

@JimP19

Welcome to HP Community

I have gone through your Post and would like to help

Please uninstall the printer driver from root level and download the full feature software

1.) In Windows, search for and open Programs and features 
2.) Select your HP Printer 
3.) Select Uninstall 
4.) In Windows, search for and open Devices and printers 
5.) In the Devices and Printers windows look for your HP printer. If you see it listed right-click on it and choose ‘Delete’ or ‘Remove Device’ 
6.) Open up the run command with the “Windows key + R” key combo.
7.) Type printui.exe /s and click Ok. (Note: there is a space in between “printui.exe” and “/s”) 
8.) Click on the “Drivers” tab 
9.) Look for HP Printer driver. If you see it Click on it and click Remove at the bottom 
10.) Select Ok 
11.) Select Apply and Ok on the Print Server Properties windows 
12.) Close Devices and Printers
13.) Restart the computer and download the full feature software Link: https://ftp.hp.com/pub/softlib/software13/printers/OJ6970/OJ6970_Full_WebPack_40.14.1194.exe and follow the onscreen instructions

Keep me posted 

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