I just bought a Xerox B215, and after a lot of trying I haven't been able to scan at 1200*1200 dpi from MacOS Sierra. The max resolution I get is 600*600, and even at this resolution the resulting image quality is less than average. I believe this might be a driver issue.
I contacted Xerox Portugal phone support but it was completely unsactisfactory and unable to help. I0m considering to return the printer if I can't fix this...
Has anyone having the same issue? How is it solved?
I searched the knowledgebase, and you can only get 1200 DPI when scanning from the Document Platen glass and not the ADF. Have you tried that?