Article ID: 2712621 - View products that this article applies to.
Consider the following scenario:
In this scenario, the following error message may appear:
No scanners were detected. If a scanner is installed, make sure that it is powered on and connected to the computer, and then try again. For information about adding or troubleshooting scanners, see Help and Support."
When a WSD MFP device is installed, Windows 7 subscribes to the specific functions on the device. If the Windows 7 machine has not fully finished uninstalling the device before you attempt to reinstall it, this may cause the installation to fail.
Restart the Windows Image Acquisition service by doing the following:
Alternately, after you have uninstalled the WSD MFP device, wait a few minutes before installing the device again.
(http://go.microsoft.com/fwlink/?LinkId=151500)for other considerations.