Description: Do your scans look like this? Taking several seconds to scan?
Solution: If this is not the issue you are receiving, please follow this Article about slowness when scanning/uploading.
For most scanner types, you need to open the scanner to adjust Reference Plates. Some round, where you adjust by turning them both to black. Here is an article for a 5055 that you manually have to roll the reference plates. And for the 3065, you can flip a tab.
Once that is done, you will need to restart the client (Here's an article on how to do so) and close out Docstar, completely.
Once you reopen, go to Scan Settings, Advanced Settings and you should be able to check off "Automatic Crop". This will cut that black space out.
If they are STILL greyed out, you will need to restart the computer.