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ImageClass MF445dw - Scanner issue - Cannot communicate with the scanner

itsma
Apprentice

Hi,

I just installed the MF445DW Scanner software in my new Windows 11 computer. The printer/scanner is connected wirelessly. I can print the docs and also scan using Microsoft Scan app. But I am getting below error when I use the Cannon MF Scan Utility software:

Cannot communicate with the scanner. The cable may be disconnected or the scanner may be turned off.

 

Appreciate help!

2 REPLIES 2

Dale_1973
Contributor

I have been frustrated by this issue also. I bought a new desktop machine, and it immediately updated and installed Win11 24H2 on it. I then installed my Canon software for my printer MF750C, and the MF Scan Utility would fail with the message mentioned many times in this thread.

I have installed all the latest updates and including the one Microsoft released 12/10/2024, KB5048667, but none of that made the scanner software work.

Now today I reinstalled just the drivers for the MF750C under the Imaging devices in Device Manager, and it started working, and has kept working as I think I have tested after rebooting at least 10 times today.

So bring up Device Manager, (right click on the Start Menu), expand Imaging devices, then right click your device, mine says Canon MF750C Series, (2 times). Now this part is important as I checked it twice and if you don't Disable the device first it doesn't seem to work right. So right click on the device and click Disable Device. My MF750C is listed twice here in Imaging devices, so be sure to Disable Device for both of them. Then right click on it again and select Browse my computer for drivers, then select Let me pick from a list of available drivers on my computer. Your printer/scanner should be in the list, make sure it is selected, then click Next.

Mine then came back and said Windows has successfully updated your drivers. Make sure you do this for BOTH of the devices listed there, at least if it lists two of them. Windows does say it updated the device driver. I'm not sure what it did for sure but it did something.

It doesn't say you have to, but I then rebooted my machine before I tried the software, but then the MF Scan Utility works! It has kept working for 2 days now, and after many reboots!

I don't know if this will work for everyone but so far it has worked for me. I have no ideas what made it work today. Microsoft and Canon, (and apparently HP and Brother), need to talk and get this resolved for people!

Hector
Product Expert
Product Expert

Hello,

If you are running into issues with scanning after updating Windows 11, you can try downloading and installing the Recommended version of our drivers from our Canon USA site.

If you continue to run into issues after installing the drivers, you can try performing a registry fix. The Windows 11 24H2 has caused some scanning issues across multiple scanner brands. You can download the registry fix using one of our DR scanner downloads pages. You can use the steps in the link HERE to run the registry repair.

Holiday
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