Able to use software only after reinstalling it each time.

I am not sure if it is a HP issue or an Apple issue but the simple fact is that the software will only work the first time I use it after it is installed. If I quit HP Scan or turn the computer off, I receive the following message:

HP Officejet Pro 8610 [4B1CF8] is currently unavailable. Please check if it is turned on and connected, or try again later.

The printer itself works fine. The issue is with the scanner.

Frustrating.

KW6565 about HP Easy Scan