Oki B410 Maintenance Manual page 18

Oki Data CONFIDENTIAL
1. Charging
Charge the image drum surface by applying voltage to the charged roller that contacts the image drum
surface.
2. Exposure
The light emitting from the LED Head will be exposed to the negative charged image drum. When the
surface electric potential of exposed part of the image drum goes to decrease, the electrostatic latent
image complying with image signal is formed.
Image drum is coated by basic layer (UL), charge generating layer (CGL), charge transferring layer (CTL)
on the basic material aluminum. The thickness of the organic light sensor (OPC) that is consisted by
CTL and CGL is approximate 20µm.
Power
43984801TH Rev.1
Power
LED head
Charged roller
Image drum
Charged roller
Image drum
Paper
2. Operational explanation
LED head
Image drum
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