Operation Description
2 - 20
OL600e/610e/610e-PS/610e-S
Service Manual, P/N 59271602
Power
supply
Exposure
Light emitted by the LED head irradiates the image drum surface with a
negative charge. The surface potential of the irradiated portion drops,
forming an electrostatic latent image associated with the image signal.
The image drum is coated with an underlayer (UL), a carrier generation layer (CGL),
and carrier transfer layer (CTL) on aluminum base. The organic photo-conductor
layer (OPC), comprising CTL and CGL, is about 20
µ
m thick.
The image roller surface is charged to about –750 V by the contact charge of the charge roller.
Image drum
Paper
Image drum
LED head
LED head
Charge roller
30 mm
20
µ
m
Image drum
CTL
CGL
UL
Base