https://community.usa.canon.com/t5/Office-Printers/imageCLASS-MF634Cdw-quot-cannot-communicate-with-the-scanner/m-p/560845#M29278 <P>I bough a new HP windows 11 computer. I tried to connect my old MF634 scanner but keep getting stalled at the installation part where it says "connect the scanner",. Windows never detects it. And now when I open the Canon MF scan utility and try to scan it always says "cannot communicate with the scanner". Windows scanner works with it, although I cant control the size of the PDFs and it flakes a lot. Has anyone come up with a fix? The other fixes Ive seen here haven't worked, including trying to disable;e them in device manager and then looking for the drivers as that also gives an error message that says "the device couldnt start"</P> <P>&nbsp;</P> Sun, 20 Jul 2025 21:04:11 GMT merosen71 2025-07-20T21:04:11Z https://community.usa.canon.com/t5/Office-Printers/imageCLASS-MF634Cdw-quot-cannot-communicate-with-the-scanner/m-p/560845#M29278 <P>I bough a new HP windows 11 computer. I tried to connect my old MF634 scanner but keep getting stalled at the installation part where it says "connect the scanner",. Windows never detects it. And now when I open the Canon MF scan utility and try to scan it always says "cannot communicate with the scanner". Windows scanner works with it, although I cant control the size of the PDFs and it flakes a lot. Has anyone come up with a fix? The other fixes Ive seen here haven't worked, including trying to disable;e them in device manager and then looking for the drivers as that also gives an error message that says "the device couldnt start"</P> <P>&nbsp;</P> Sun, 20 Jul 2025 21:04:11 GMT https://community.usa.canon.com/t5/Office-Printers/imageCLASS-MF634Cdw-quot-cannot-communicate-with-the-scanner/m-p/560845#M29278 merosen71 2025-07-20T21:04:11Z