Ricoh D131 Service Manual page 1460

6. Tension brackets [A] (
There are two types of tension brackets at the crease roller area. The difference
between these brackets is the number of screw holes ([A]: one hole, [B]: two holes).
Attach a bracket [A] with one hole to the crease roller frame with one hole.
Attach a bracket [B] with two holes to the crease roller frame with two holes.
7. Magnet attachment bracket [A] (
SM
x 1 each/ front: 4, rear: 4)
x 1)
67
Electrical Components: Main 2
D454/D615