It sounds like you have tried the steps that I would have suggested. Please contact our service department to at1-800-821-2797 or 1-800-835-6100 for further assistance.
I've got four network Xerox Altalink C870 printers all configured and deployed through GPO. Three are printing without any problem, however one only prints blank pages. This started about a week ago.
I've followed the steps listed in https://www.support.xerox.com/en-us/article/en/1561151 without any positive results.
I've followed the suggestions from https://forum.support.xerox.com/t5/Copying-Faxing-Scanning/Printer-appearing-to-print-but-pages-are-.... Still no luck.
Any help or suggestion is welcome.