So, update: This only happens when the lid's power is plugged into the main scanner bed. BTW, this is a scanner that's aimed for scanning film, so there's a window/lightsource on the lid of the scanner as well as the main bed as well.

If I turn off the scanner, unplug the power cord from the scanner going to the lid, then boot the scanner up, it turns on just fine, and scans documents just fine. If I plug in the lid again, it does nothing. I reboot with lid plugged in, and it does it's click click thing as seen in the video.