2-13
2.3.4 Exposure mechanism
The LED print head lights according to the image data transferred from the print controller, and exposes the
drum surface. The exposed surface loses the energy of charge, and an invisible static image is created on
the drum surface.
1
2
Charge
Charged
potential (V
O
)
Exposed
potential (V
L
)
Exposed area Non-exposed area
Non-exposed area
Negative potential
Negative potential
Drum rotation direction
The potential of this area (black part of the document)
changes by exposure
No. Part name No. Part name
1 LED print head 2 OPC drum