When I attempt to scan, either from the computer or the panel, the scan device moves as if it is scanning. But, I get an error that says the scanner is unable to communicate with the computer. This was working fine and now suddenly does not. Please help.
What version of Windows is installed on your computer?
If you are using a Mac, what version of OSX is installed?
Are you using your PIXMA G7020 wirelessly?
Or with a USB cable?
What program are you using to scan? Are you using the IJ Scan Utility?
When scanning with the IJ Scan Utility, what error code appears at the bottom of the error message that you get?