Canon PIXMA MG7720 User Manual - Page 793

Scanner Driver Error Messages Error Message Error in scanner. See the manual for solutions. USB connection: Cannot communicate with scanner for these reasons: - Scanner is turned off. - USB cable is disconnected. Please check and try again. Network connection: Cannot communicate with scanner for these reasons: - Scanner is turned off. - (If using Wired LAN connection) It is disconnected from Wired LAN. - (If using wireless LAN connection) Signal strength is poor due to obstructions. - Network connection is prohibited by security software. - Different scanner on the network is selected. Please check and try again. A required file is missing or corrupted, or settings are incorrect. Try the installation again. Cannot write or read file. There is not enough free disk space to complete the scan. Printer is in use or an error has occurred. Check status. The scanner is not available while in use by another application or user. Solution • Make sure that your scanner or printer and the computer are connected correctly. • Your scanner or printer may be damaged. Restart the computer, then reconnect your scanner. If the same error message still appears, contact the service center. • Make sure that your scanner or printer is turned on. • Make sure that the selected scanner is correct. Refer to the application's manual for details. • With USB connection, check the connection of the USB cable and reconnect as required. • With network connection, check the connection status and reconnect as required. • Reinstall the scanner driver from the web page. • Exit running applications, check that there is sufficient free space on the hard disk, then scan again. • Make sure that there is no problem with the destination folder, file name, or access permission. • Delete unnecessary files on the hard disk and scan again. • Check the printer status. • Close the other application. 793