Ricoh D131 Service Manual page 1457

Replacement and Adjustment
12. Remove the cam [A] on the front side.
13. Fold roller fixing front plate [B] ( x 3)
14. 2nd fold motor [A] ( p.21)
15. 2nd fold pulley gear [B] ( x 1) and idle gear
16. Timing belt [C]
17. Spring [D]
18. FM6 pawl motor [E] ( p.20)
19. Pulley gear [F]
D454/D615 64 SM