Ep Process; Charging; Exposing - Samsung CLP-600 Series Service Manual

System Overview

3.1.3 EP process

1)Charging

Roller charging
Roller resistivity : ~ 10^5 ohm-cm
Applied voltage : -1.0 ~ -1.5kV
Charge acceptance : ~ -550V
OPC coating thickness : ~ 20um
OPC diameter : •'24mm
Non eraser system

2)Exposing

One polygon motor ( 8 facet )
Dual beam LD (2ea)
LD wavelength : 785nm
Polygon motor rpm : ~ 21600
LSU energy : ~ 0.5uJ/cm^2
OPC exposed potential : ~ 50V
Service Manual
3-6
Samsung Electronics