Ricoh D014 Service Manual page 928

Photoconductor Units (PCU)
K PCU
The CGB power pack (a constant dc power pack) applies a high electrostatic charge to a
pair of corona wires [A] suspended above the OPC drum [B]. The corona of this wire
charges the surface of the drum below.
The amount of ozone generated during drum charging is much more than the amount
generated with the charge roller system used in the YMC PCUs. For this reason, the ozone
filter of this machine has been enlarged and more fans have been installed around the
ozone filter.
The charge wire cleaning motor [C] switches on at the time set with SP2220-1 to move the
charge wire cleaning pad [D] one stroke forward and one stroke back to clean the wires.
This keeps the wires free of dirt and ensures a uniform charge corona.
D014/D015/D078/D079
CÓPIA NÃO CONTROLADA
6-24
CÓPIA NÃO CONTROLADA
SM