General Description - Toshiba e-studio3511, e-studio4511 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 create the latent image. 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 elements such as cylinder lenses, polygonal mirror and fθ θ θ θ θ lens.
The unit must not be disassembled in the field as they are very sensitive to dust and finely adjusted at the
factory.
8
[Laser Optical Unit Overview]
Fig. 8-101
November 2003 © TOSHIBA TEC 8 - 1 e-STUDIO3511/4511 LASER OPTICAL UNIT