The error message "an error

Click start control panel administrive tools computer management then select event viewer depending on what operating sytem you have this may vary
extend the events there you will see errors in red you will no what exactly what the error was and at what time it occured you might have to uninstall then reinstall the program and its files
the drivers for the scanner might have been corrupted
you might have to uninstall the printer/scanner restart your computer then reinstall the printer/scanner and its drivers
click start control panel administrive tools computer management device manager scroll to ports(COM&LPT) + to expand you should see a communication port and Ecp printer port you might see a yellow?question mark this will mean you need to install a new driver for this device right click you will have options to update driver,disable,uninstall or select properties again you will have the similiar options plus you can troubleshoot
hope this helps