Look on the Xerox Security website under Articles and White Papers for the devices that support SMB v3.
In your post your reference the Xerox B235. Here is the link to the Security Guide for that product.
I hope this helps.
Which of the Xerox MFP with ADF Scanners support SMBv3 - also called CIFS ?
SMBv3 is a standard for about 10 years, its more secure than all the SMBv2 file sharing services which should be abandoned already 10 years ago...
MFP should not even support SMBv1! But which one supports SMBv3 ???