I see no one has responded to this post yet. So, at this point I would recommend contacting your local Xerox Support Department to speak with a Product Specialist for more assistance. Please call 1-800-821-2797.
Thanks, TammyL-Xerox Community Manager
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I am copying from USB. A pdf with even number of pages copies to 2-sided pages correctly. If the pdf has an odd number of pages, the 3-hole punches are reversed in the output tray (opposite the regular pages) and a blank side is left before the last page is printed. Confusing, I know.
Example--copying a 5-page pdf. Page 1 and 2 are front and back of first sheet (holes on the left as normal). Pages 3 and 4 are on sheet two and holes are on the left as normal. Then for page 5 the punched holes are on the right in the output tray and a blank side is inserted BEFORE page 5 is printed.