How do I fix my Canon MX432 scanner probelm on Windows 10?

I have not tried this solution but it is suggested to me by Canon technical staff via an email. It should work by I have to find my Canon MX 432 installation disc first.

But here is the procedure. It should cover all the three functionalities.

Uninstalling and reinstalling the network port and printer driver using the utilities on the CDROM should resolve this issue.  To perform the uninstall, please have the PIXMA MX432's CDROM in the CDROM drive and then follow these steps:

 1.  Put the PIXMA MX432's CDROM in the CDROM drive.  If the welcome screen appears, exit it.
 2.  Click on Start and then All Apps.
 3.  Click on Windows System.
 4.  Click on RUN.
 5.  Click Browse.
 6.  Double click the CANON_IJ CDROM.
 7.  Double click the folder named WIN.
 8.  Double click the folder named Driver.
 9.  Double click the folder named DrvSetup.
10.  Double click the file named DELDRV.  If you are using the 64 bit version of Windows 10, please double click DELDRV64.  In the Run box click OK.
11.  Click Execute to start uninstall and Yes to completely uninstall the drivers.
12.  Once finished,  click on Start and then All Apps.
13.  Click on Windows System.
14.  Click on RUN.
15.  Click Browse.
16.  Double click the CANON_IJ CDROM.
17.  Double click the folder named WIN.
18.  Double click the folder named Driver.
19.  Double click the folder named LAN.
20.  Double click the file named CNMNPU.exe
21.  In the Run box click OK and then Yes on the Delete BJNP Port window.
22.  The uninstaller will prompt you to restart the computer, please click Yes to restart the computer.


Please follow these steps to download the necessary files to begin installation once the computer restarts:
 1.  Visit Canon's website at: http://www.usa.canon.com/cusa/support/consumer
 2.  Type PIXMA MX432 in the "Enter Your Model Name" box and click GO.
 3.  On the Support page for your unit, click the 'Drivers & Software' link in the middle of the page.
 4.  Click Drivers.
 5.  Click on the MX430 series Mini Master Setup.
 6.  If you agree, please select the checkbox next to "I have read and agree to the terms of the Disclaimer and wish to continue with the download".
 7.  Click on the Download button.
 8.  When the Save As box comes up, click Save.

To install the unit for use over your network wirelessly, please follow these steps when the computer restarts:
 1.  Press the button on your PIXMA MX432.
 2.  Use the left or right button to select Device Settings and press .
 3.  Use the left or right button to select LAN Settings and press .
 4.  Use the left or right button to select Wireless LAN Setup and press .
 5.  Enter your wireless password and press .  Please verify the password, as it is case sensitive and if entered incorrectly, will cause the printer and router to not communicate.  To switch between letters and numbers, press the * key.
 6.  Press on the confirmation screen.  The PIXMA MX432 will search for the access point.
 7.  When found, press on the Connected to the access point screen.
 8.  Back on your computer, open the Downloads folder and double click [mast-win-mx430-1_1-ucd.exe] to begin installation of the drivers.

Follow the prompts and installation will complete.
For additional assistance, there are guides that can be viewed by following this link:
http://www.usa.canon.com/cusa/support/consumer/printers_multifunction/pixma_mx_series/pixma_mx432#Wireless_Help