Ricoh B230 Service Manual page 167

When the development unit is removed from the drum unit, clean the entrance
mylar [G] with a vacuum.
8. If you change the development unit, do the ACC procedure.
Developer
1. Set SP 3902-xxx to "1".
Black: 3902-005
Yellow: 3902-006
Cyan: 3902-007
Magenta: 3902-008
2. Turn the machine power off.
3. Development unit (
4. Hopper cover [A] (hook x 3)
5. Shake a bag of developer and pour it into the development hopper [B].
6. Reattach the hopper cover (hook x 3)
7. Turn the machine power on. The machine initializes the developer and resets the
SM
"Drum Unit and Development Unit")
3-39 B230/B237