Why not just contact Kyocera, explain your isolation predicament, the fact that instructions how to do the job are in the manual but that you cant locate the necessary file on any Kyocera support site and ask for it to br emailed or put on a file access site.
The relevant manual page is here
http://www.manualslib.com/manual/861718/Kyocera-Fs-C8520mfp.html?page=285#manual
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April 2016