It seems to be a ghost image. no paper i disassemble the whole unit, that is why i tried the adf from another identical unit.
After it does its extensive self test/ boot process, it states ready for about 30 seconds, then it displays the error.
i don't have to initiate the scan.
i am going in early and i will swap the scanning assembly to test.
I will post my results as soon as i can.
Thank You for your imput, much appreciated.