From what I can see, dlbkutil.dll is a Windows file. The file could be corrupt.
You can run sfc /scannow to verify the Windows core files.
>> http://support.microsoft.com/kb/929833
If that doesn't resolve the problem, the next step would be to uninstall the drivers/software associated with the printer/scanner using Add and Remove programs, reboot, and then reinstall the software/drivers using the manufacturers guidelines. Use the latest version of the software/drivers from the manufacturers website.
You can run sfc /scannow to verify the Windows core files.
>> http://support.microsoft.com/kb/929833
If that doesn't resolve the problem, the next step would be to uninstall the drivers/software associated with the printer/scanner using Add and Remove programs, reboot, and then reinstall the software/drivers using the manufacturers guidelines. Use the latest version of the software/drivers from the manufacturers website.