Hi kmallard.
I will be able to assist you.
Have you uninstalled and reinstalled the MF Scan Utility software? If not, please follow the steps below:
1. Right-click on the Windows [Start] button, and then select [Programs and Features].
2. Double-click on the Canon MF Scan Utility, and then follow the prompts to uninstall the program.
3. Restart the computer.
Once the computer is back on, please click the link below, and then select the [Software] tab to download and reinstall the MF Scan Utility:
imageCLASS MF628CW - Drivers & Downloads
If you still experience an error, or require further assistance, please contact us at 1-800-OK-CANON (1-800-652-2666) and we will be glad to help you.