Hello luke1234,
I understand an error occurs when you attempt to scan with your imageCLASS MF216n. To ensure we are on the same page, and resolve your issue with scanning, I suggest you uninstall the current drivers then download and install the Windows 10 drivers and Patch for Network Scan, USB Scan from our web site using the steps at this LINK.
If you need immediate assistance and you're in the USA, please click http://Canon.us/ContactCF for our US-based support. If you're outside of the US, please click http://Canon.us/4xf7 for support options.
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