Ricoh B064 Service Manual page 105

PUNCH UNIT (B531/A812)
[A]
[B]
[C]
B531I003.WMF
B531I004.WMF
7. Remove the paper guide [A] ( x 4).
8. Install the sensor arm [B] ( x 1, small step screw (M3 x 4).
NOTE: Make sure that the sensor arm swings freely on the step screw.
9. Attach the spring [C].
SM 1-71 B064 Series/B140 Series/G126