Ricoh D017 Service Manual page 195

The two red marks [D] come together when you have done this. Stick the wire
to the pulley with tape. This lets you easily handle the assembly at the time of
installation.
4. Install the drive pulley on the shaft [E].
Do not attach the pulley to the shaft with the screw at this time.
5. Insert the left end into the slit [F]. The end should go via the rear track of the left pulley
[G] and the rear track of the movable pulley [H].
6. Hook the right end onto the front scanner wire bracket [I]. The end should go via the
D017/D018/D019/D020/D084/D085 4-15
Scanner Unit
SM