Charging - OKIDATA OL600e Service Manual

Charging

Charging is actuated by the application of the DC voltage to the charge
roller that is in contact with the image drum surface.
Charge roller
Power
supply
Image drum
The charge roller consists of two layers: a conductive layer and a surface
protective layer, both having elasticity to secure good contact with the image
drum. When the DC voltage applied by the power supply exceeds the
threshold value, charging begins. The applied voltage is proportional to the
charge potential, with an offset of approximately –550V.
charge potential
[V]
-750
-550 -1300 [V]
applied voltage
Operation Description 2 - 19 OL600e/610e/610e-PS/610e-S
Service Manual, P/N 59271602