Ricoh Pro 8310 - Page 660

2.Image Quality Problems
652
5. Lay the CGB unit on a flat clean surface with the grid facing up.
 Never lay the CGB unit with the grid side down.
6. Detach the PCDU cover [A] ( x3).
 When you reattach the cover, be sure to attach the screws in this order: Center, Right,
Lower Left
7. Turn the knob [A] on the end of the drum shaft counter-clockwise, and then remove it.