Fix 0x00000015 Error: Scanner not working. The device is not ready.
If you receive the error message: “The operation could not be completed (error 0x00000015). The device is not ready”, which probably means that you do not have an important service on your computer. The name of this service is Windows Image Acquisition (WIA).
This indicates that something is wrong with the scanner and that it is not working properly. The fact is that this service has some dependencies, so before launching it, you may need to check it and launch other services if necessary.