Canon Mf Toolbox For Windows 8.1
Previously I reported that the first suggestion you mentioned worked for me. You suggested uninstall/reinstall in Selective Startup Mode. I followed those directions and the Toolbox worked for a couple of months and then the problem reappeared. I then tried setting the toolbox settings to Run as Administrator. That did not work. The only thing that does work is to uninstall and reinstall toolbox, then when it stops working, do more of the same. Surely there is a better option. This is a perfectly good printer but the scanning function is unreliable since Windows 8. How do we get the engineers at Canon to resolve this issue and update the drivers or toolbox software with a fix? If reinstalling works, what is it about reinstalling that fixes the problem and what causes it not to stay fixed?
Canon Mf Toolbox For Windows 8.1
Also, to get the old toolbox uninstalled, I had to reboot into safe mode. Otherwise the uninstaller just hung. Then booted back into regular mode, removed all traces of the existing printer, then reinstalled the new software and it works great.
Some incompatibility, when some other software felt the need to update a boatload of .NET assemblies or virtual engines or redistributables, and it's broken. Now, the toolbox doesn't know what scanner it's talking to. Probably because some WSDL XML got screwed with and the RPCs are all messed up...
7. Delete the files or folders below that correspond to the driver you want to uninstall.Drag files or folders to the [Trash] icon on the Dock to delete.
If an authentication dialog box appears, enter the administrator's name and password, and click [OK].
SoftwareLocation of the folder to enterName of the file or folder to deletePrinter driver/Library/Printers/Canon/CUPS_MF_Printer/Library/Printers/PPDs/Contents/Resources/CNPZBxxxZB.ppd.gz(xxx may differ depending on the model.)Fax driver/Library/Printers/Canon/CUPSFAX/Library/Printers/PPDs/Contents/Resources/CNMCxxxFB.ppd.gz(xxx may differ depending on the model.)Scanner driver/MF Toolbox/Applications/Canon MF Utilities/Library/Image Capture/Devices/*Canon MFScannerxxx.app*(xxx may differ depending on the model.)/Library/Image Capture/TWAIN Data Sources/Canon xxx.dsCanon xxx USB.ds(xxx may differ depending on the model.)/Library/Printers/Canon/MFScanner/Library/LaunchAgentsjp.co.canon.ScanGearMF.appl.Canon-MF-Scan-Agent.plist* Mac OS X 10.6 or later 041b061a72