Drum Charge; Overview - Ricoh B022 Service Manual

2.5 DRUM CHARGE

2.5.1 OVERVIEW

[A]
This copier uses a drum charge roller to charge the drum. The drum charge roller
[A] always contacts the surface of the drum [B] to give it a negative charge of
-900V.
The high voltage supply board gives a negative dc voltage to the drum charge
roller through the spring [C] and terminal plate [D].
SM
[C]
[D]
2-27
DRUM CHARGE
[B]
B027D203.WMF
B022/B027