Check: Disconnect the USB cable, then uninstall (delete) and reinstall MP Drivers and IJ Scan Utility.
Step 1: Uninstall MP Drivers.
Refer to "Deleting the Unnecessary MP Drivers" for your model from Home of the Online Manual for how to delete MP Drivers.
Step 2: Uninstall IJ Scan Utility.
Windows 8:
Click the Settings charm > Control Panel > Programs > Uninstall a program.
Double-click Canon IJ Scan Utility.
When a confirmation appears, click Yes.
When uninstallation is complete, click OK.
IJ Scan Utility is deleted.
In Windows 8, a confirmation/warning dialog box may appear when installing, uninstalling, or starting up software.
This dialog box appears when administrative rights are required to perform a task.
If you are logged on to an administrator account, follow the on-screen instructions.
Windows 7 / Windows Vista:
From the Start menu, select Control Panel > Programs > Uninstall a program.
Double-click Canon IJ Scan Utility.
When a confirmation appears, click Yes.
When uninstallation is complete, click OK.
IJ Scan Utility is deleted.
In Windows 7 and Windows Vista, a confirmation/warning dialog box may appear when installing, uninstalling, or starting up software.
This dialog box appears when administrative rights are required to perform a task.
If you are logged on to an administrator account, follow the on-screen instructions.
Windows XP:
From the Start menu, select Control Panel > Add or Remove Programs.
Select Canon IJ Scan Utility, then click Change/Remove.
When a confirmation appears, click Yes.
When uninstallation is complete, click OK.
IJ Scan Utility is deleted.
Step 3: Reinstall MP Drivers and IJ Scan Utility.
Reinstall MP Drivers and IJ Scan Utility from the Setup CD-ROM or the web page.
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