Oki OKIPAGE 6e, Service Manual, Page: 42 / 262

Operation Description 2 - 19 OKIPAGE 6e/6ex
Service Manual, P/N 59276401
Charging
Charging is actuated by the application of the DC voltage to the charge roller that is in contact with
the image drum surface.
The charge roller is composed 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 offset of approximately –550V.
Image drum
Charge roller
Power
supply
charge potential
applied voltage
-1300 -550 [V]
[V]
-750