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AR-651/810 SCANNING SECTION 6 - 3
(3) Carriage-2
The carriage-2 consists of mirror-2, mirror-3, etc. and directs the reflected light from the mirror-1 through
mirrors-2 and -3 to the lens.
This carriage-2 is driven by the scanner motor as the carriage-1, at half the scanning speed of carriage-1
(the scanning distance is also half of carriage-1).
(4) Lens unit
The light reflected from mirror-3 is led to the CCD placed at the focal point of the lens which is fixed in
position.
(5) CCD board
Processes such as signal amplification, signal integration, A/D conversion and shading correction are
applied to the electrical signal which has been converted by the CCD.
(6) Automatic original detection sensor
The size of the original placed on the glass is instantly detected using the automatic original detection
sensors (APS sensor) fixed on the optics base frame without carriage-1 having to move.
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