Laser Optical Unit; General Description - Toshiba e-STUDIO200L Service Manual

8.

LASER OPTICAL UNIT

8.1

General Description

The laser optical unit radiates the laser beam onto the photoconductive drum responding to the digital
image signals transmitted from the scanner, printer controller, etc. to form a latent image. The image
signal is converted into the light emission signal of the laser diode on the laser driving PC board, then
radiated on the drum through the optical devices such as cylinder lens, polygonal mirror and f θ lenses.
The unit must not be disassembled in the field as they are very sensitive to dust and finely adjusted at
the factory.
Paper exit
Front
8
Rear
Fig. 8-1
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LASER OPTICAL UNIT
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