I have been unable to get any document to print from inDesign CC 2015 on a Mac running El Capitan and Xerox Driver 3.68.0. The only thing that prints is a generic Error Notice and says "The job was deleted becuase the client requested a printing function that is not avaible." The same docuemtn prints OK when saved to a PDF from both Acrobat an Preview.
Any help would be appreciated.
can you remove the printer from your system
then add the printer again, but choose IP => IPP protocol, manually enter the IP address, choose te correct PPD file and test again
Try this spar driver, it's universal so it should support the 75xx machines. Worst case scenario it doesn't and you waste 3 minutes trying, best case it resolves the issue.