Ricoh D017 Service Manual page 210

Photoconductor Unit (PCU)
10. Remove the development roller [H] from the development unit.
At reinstallation, make sure that the mylar is positioned as shown.
11. Turn the development roller gear [I] to remove toner from around the development roller.
12. Assemble the development unit.
Dispose of the used developer according to the local laws and regulations
regarding the disposal of such items.
SM 4-30 D017/D018/D019/D020/D084/D085