The first step would be to install both the print and scan drivers, I've included an article here with the instruction on how to do that.
We also have several video's on our Youtube channel that may be of help.
If you are still having issues after trying these steps, I suggest that you call into our support department for assistance @ 1-800-821-2797 or 1-800-835-6100
Hello all i just got the versalink c400 and im like lost lol. How do i scan or print?