General information 1-31
5023-110
Details of the optical system
In the optical system process, the printer utilizes a semiconductor laser diode as a light source. This laser
diode is controlled by fast switching which matches the transmitted image data (video signal).
The generated laser light scans the OPC belt through a polygon mirror and lens. The electrostatic latent
images are formed on the OPC belt.
The Optical printhead unit consists of following parts:
No. Description
1
PD: photo detector
2
Polygon mirror: hexahedral mirror that reflects the laser beam
3
Cylinder lens: laser beam condenser
4
Laser unit: laser diode light emitting source
5
LDC: laser diode control circuit
6
BTD mirror: beam timing detector mirror to guide the laser beam to PD
7
Scanner motor: rotates the polygon mirror
8
F-lens: laser beam focus lens
9
Mirror: laser beam path reflecting mirror
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