Exposure
Light emitted by the LED head irradiates the image drum surface with a negative charge. The surface
potential of the irradiated portion of the image drum 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 mm thick.
The image roller surface is charged to about -750 V by the contact charge of the charge roller.
When the light from the LED head irradiates the image drum surface, the light energy generates positive
and negative carriers in the CGL. The positive carriers are moved to the CTL by an electrical field acting
on the image drum. Likewise, the negative carriers flow into the aluminum layer (ground).
Summary of Contents for Okipage6e
Page 6: ...Table of Contents Page 6 PARTS LIST 156...
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Page 11: ...4 High Capacity Second Paper Feeder 5 Multi Purpose Feeder...
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Page 115: ...Page 63 Service Guide OKIPAGE6e Chapter 6 Troubleshooting Procedures...
Page 118: ...Page 65 Service Guide OKIPAGE6e Chapter 6 Troubleshooting Procedures...
Page 135: ...Page 81 Service Guide OKIPAGE6e Chapter 7 Wiring Diagram...
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