Perform continuous duplex printing for 10 copies (10 sheets) of the template.
Measure dimensions of the 6th sheet of paper from the beginning of the printed template. Check for off-registration on Side 1 and Side 2.
How to Check for Off-Registration
Thin paper: Hold up to the light and check.
Thick paper/paper which is not see-through: Use an eyeleteer or other tool to open holes and then check.