Xerox 7855 Professional Finisher Adjustment

[pdy-pt]

Hi together,

while the service manual describes all the procedures for setting the booklet unit on the Professional Finisher (7830/7835/7845/7855), I miss information on setting the hole punch position and the staple position.
On one machine, the staple position would need to be moved up about 4mm.
Does anyone here know how to proceed to make this adjustment?

Thanks!
Patrick