6
March 2005 © TOSHIBA TEC e-STUDIO520/600/720/850 SCANNING SECTION
6 - 1
6. SCANNING SECTION
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 and lens to the CCD where the 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 performs various corrective processes necessary for image for-
mation. After that, an arithmetic operation is performed on the digital signal, which is then transmitted to
the data writing section.
Fig.6-1
Exposure lamp
Reflector
Carriage-1
Rail for carriage-1
Original glass
Drive pulley
Carriage-2
Rail for carriage-2
Lens
CCD sensor
CCD board
SLG board
Shading correction
plate
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