, refer to Troubleshoot a "required privileges error" with the IJ Scan Utility from a Windows computer. When attempting to scan, you may get an error message that looks similar those below.
Read a Wireless Network Settings page Signal Strength: Here you will see the strength of the printer's network connection. A signal strength lower than 80% may result in slower performance or errors when printing or scanning. If it is too low, consider moving your printer closer to your wireless router.