HP ENVY 7640 will print but will not scan.

[Lynnbo19]

I am able to print on my HP ENVY Printer but I am unable to Scan.  I was scanning today and several pages went through the feeder and then it stopped & got hung up.  I powered down the printer, took paper out  the page that was stuck in the feeder & powdered back on.  When I retry scanning the scanner light doesn't come on &  get error message that says it's either, 1) the connection to the computer has been lost, 2) the scan application on the computer is currently in use 3) An OCR application is not installed on the computer. 

[Raj1788]

Hi @Lynnbo19,

Thank you for joining HP Forums. 

This is a great place to get support, find answers 

I understand that you can print but the scan is not working.

No worries, I'll be glad to help you, that said, I'll need a few more details to dissect your concern & provide an accurate solution: 

Have you tried to change the scan setting?

Is copy working fine?

If the copy comes out good, then the issue could be with the printer driver on your Pc. Try a clean install as suggested below:

• First, unplug the USB cable from the printer if present.
• Go to Control panel – Programs and feature – Select all the HP Deskjet printer entries and uninstall them.
• Now go to Control panel – Devices and printer – Select all the printer entries and remove the device.
• Restart your computer.
• Click the bottom-left Start button on the desktop, type device manager in the search box and tap Device Manager on the menu.
• Once in device manager, click on the view tab in the top & choose “Show hidden devices”.
• Then from the device manager list, check the entries under “Printer”  – If there are any entries, please right click and choose “uninstall” – In the confirm device un-install pop-up, make sure you select the box which says “Delete the driver software for this device".
• Also, check the entries under "printer queue" and "imaging devices" and repeat the same exercise. Delete any printer entry or any entry which says “Unknown device”.
• Once done, close device-manger. Then press the "windows key" + "r" to get the "Run" window open - Type "printui.exe /s" (there is a space between .exe & /) and press enter.
• Under print server properties, go to drivers - remove any entry there as well.
• Again, go to run window, type – “c:/programdata” – Go to Hewlett Packard folder, remove any printer related folders & files.
• Open run again, type “%temp%” and press enter to get the temporary files. Delete all the files here. Skip the items which cannot be deleted.
• Now restart your computer again.
• Open the Run window again, type “services.msc” and press ok to get services window.
• Scroll down to “Remote Procedure Call (RPC)” – right-click and go to properties. Make sure the service is started and startup type is “Automatic”.
• Now scroll up and go to “Function Discovery Provider Host” – right-click and select properties – Change the startup type to “manual” and start the service.
• Repeat the same exercise on “Function Discovery Resource Publication” as well.
• Click on http://hp.care/2vIctg5 and install the software.

You can also try to disable the firewall on your PC temporarily and then try to scan.

Do get back to me as I have a few more tricks up my sleeve. Said that, if I have helped you resolve the issue.

Feel free to give me a virtual high-five by clicking the 'Thumbs Up' icon followed by clicking on 'Accepted as Solution'

Have a great day Ahead!