859K07312 / 859K07313 / 859K07314 / 859K07315 / 859K07316 / 859K07317 / 641S01221. Xerox Versant 180 / 280 / 3100 / 4100. This won't work in the Versant 80 / 2100. 2nd BTR (Bias Transfer Roller).
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