Hi Colin,
Dell Studio 1747 has not been tested for Windows 8 operating system. You can however download the Windows 7 driver and install it in compatibility mode. ST Micro Screen Detection Sensor is related to the hard drive on the system. Please let me know te problems you are facing with the wireless printer.
Download the R244464.exe from the link above, double click on the file, and extract it on the desktop in a folder. Look for setup file in the extracted folder. Right click ‘.exe’ file and click ‘Properties’. Click “install in compatibility mode’. Click on Application and select ‘Troubleshoot Compatibility’. Next, click on ‘Troubleshoot Program’. Click on Program worked in earlier versions of Windows. Click on ‘Windows 7’.Click on ‘Start the Program’. Do not hit ‘Next’ until the installation completes. Once the installation completes, click on ‘Next’.