Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
That's a bad symptom. It's possible that your scanner's image sensor, or associated circuitry, has failed. If so, the scanner will need either repair-servicing, or replacement.
The question, already asked, about how old the scanner is, is crucial (should it prove to be 'broken'.) Please let me know how long it has been since the scanner's date of original purchase.
What you can try doing:
- turn Off the scanner. Put it aside for several hours, with no power.
- on your computer, uninstall the scanner's driver and/or software.
- then restart your computer.
- then, re-install the scanner's driver (and/or software. I put it this way because some scanners have no driver per se, just software with a driver included in it.)
And then, after several hours of rest-and-resetting for the scanner hardware, hook it up and turn it On again, and see how it does.
If the scans still come out black after that, the scanner's image sensor circuitry is broken.
(If this answers your question, please rate my answer. Thanks.)