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CanoScan LiDE 400 Error Code 2,156,33


I have connected my LiDE 490 Scanner to my hp laptop but just keep getting error code 2,156,33 

Cannot communicate 



Hi, Grahamjt!

So that the Community can help you better, we need to know exactly which operating system is running on your computer (i.e. Windows or something else, and which version thereof). That, and any other details you'd like to give will help the Community better understand your issue!

If this is a time-sensitive matter, click HERE search our knowledge base or find additional support options HERE.

Thanks and have a great day!

Hi , my system is windows 10


Please disconnect the USB cable from your scanner and then toggle the lock switch back and forth a few times, leaving it in the unlocked position.

Please open the cover and make sure that the scanning element is on the side with the buttons, not the hinge side.

Reconnect the USB cable an attempt to scan.

If the issue persists,  I recommend reaching out to Canon support for your warranty options. You will need to register your Canon gear HERE to access additional support options.

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