CanoScan LiDE 400 Error Code 5,156,69

[Reno_Melon]

Just bought a Canon LiDe 400 off of Amazon.  Running the latest version of Windows 10.  Installed the software, keep getting an error stating "Cannot communicate with scannerfor these reasons: 

Scanner is turned off.

USB cable is disconnected.  Code: 5, 156, 69

Scanner is on and plugged in.  When I plug it in, I can watch the scan bar "home" itself like it should.  No matter what I do, I cannot get it to work.  Googled the issue and it looks like this is not uncommon.  Just can't find the right fix.  

Thanks.

[ArthurJ]

Hi,

The 5,156,69 error can be caused by security software that is enabled on your computer. If adjusting security when installing the scanner does not resolve the issue,  I recommend reaching out to Canon support. The real time feedback of a live technical support call/chat would be very beneficial in this case.

You will need to register your Canon gear HERE to access additional support options.

We look forward to hearing from you. 

[Jackstephan]

I had this problem with my Canon scanner 9000f Mark ii.  I tried installing updated drivers, I went into device manager and deleted the scanner and driver, none of this made any difference.  I opened up scan gear, and went to tools and noticed it was showing a Canoscan 220 as my scanner. I went to settings in windows, and went to apps, and deleted program or file that had Canon on it.  I then went and downloaded scangear from Canon's website and also the drivers, and installed both. The scanner was now identified, the error code went away and the scanner worked