Ricoh A-P4, Service Manual

Page: 84 / 381

1. With the PCU slightly offset, set it on top of the development unit, then carefully slide it
horizontally to ensure that the end of the toner supply shutter at the toner supply port opens.
2. Check the exposed spring on the back of the PCDU.
• If the spring is spread open, the supply port is open.
• If the spring is not open, the supply port is shut. Slide the PCU back and engage it correctly.
• If the supply port remains closed, no toner will reach the drum.
Drum
1. Remove the PCDU (See "PCDU")
2. Never touch the drum surface with bare hands.
3. Remove the toner cap [A] and use it to cover the toner port [B].
4. Turn the PCU upside down and remove the lower cover [C] (

x 2, pawls x 3)
PCDU
83
3