Hi Again,
The printer is now powered direct from a wall power outlet.
When the "START COPY" button is pushed (lid up) I see the scan bar moves from the park position to start the scan. Part of the light is on at this stage (the edge). The light goes out and the bar parks back out of sight. I notice this is when I hear the aural sound from my computer indicating the printer has disconnected (from the computer.
I am unable to turn the printer off. Pushing the power button has no effect. I have to disconnect the power lead to power down the printer but that only happens after it has "INITIALIZED" , the power light stops blinking, and I press the power button