Toshiba e-STUDIO Series - Writing

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MFP BASIC TECHNOLOGIES
2 - 10
2.3.5 Writing
Writing is a process of converting the image signals transmitted from the image processing section into
optical signals and exposing the surface of the photoconductive drum. The potential is removed from
the exposed portions and thus electrostatic latent images corresponding to the original are formed on
the surface of the photoconductive drum.
[ 1 ] Laser scanning (optical) unit
The laser scanning (optical) unit converts the image signals transmitted from the image processing
section into the optical signals (laser emission) by means of the semiconductor laser element, and
exposes the surface of the photoconductive drum.
Fig. 2-16
[ 2 ] LED printer head
The LED directly exposures a LED light onto the photoconductive drum.
Fig. 2-17
Image processing section
Photoconductive drum
Semiconductor laser element
Laser optical unit
Image processing section
Photoconductive drum
LED printer head