Scanner; Function - Toshiba e-STUDIO350 Service Manual

6.

SCANNER

6.1 Function

In the scanning section of this equipment, the surface of an original is irradiated with a direct light and the
reflected light is led through mirrors, a lens and a slit to CCD where optical-to-electrical conversion is
performed, converting the optical image data into an electrical (analog) signal. This analog signal is changed
to a digital signal, which then undertakes various corrective processes necessary for image formation.
After that, arithmetic operation is performed on the digital signal, which is then transmitted to the data
writing section.
6
Reflector
Lens
Original glass
Exposure lamp
Drive pulley
Rail for carriage-2
Rail for carriage-1
Carriage-2
SLG board
Carriage-1
CCD board
Fig. 6-101
November 2003 © TOSHIBA TEC 6 - 1 e-STUDIO350/450 SCANNER