HP Latex 3000 Printer - Manual (Page 9)

8. Tighten the base nut.
9. Tighten the two screws to fix the final position of the Dual Roll Center Support.
NOTE: Hold the support shaft firmly in position when tightening screws.
10. Insert the screw into the support base.
11. Remove the single roll spindle.
12. Repeat the process for calibration of the front Dual-Roll Spindle.
ENWW Calibrate the Dual Roll Center Support 5