Scanner Unit
537
Scanner Unit
Overview
Callout Item Callout Item
[A] Exposure glass (for ADF) [E] ADF set sensor
[B] Exposure glass (for platen mode) [F] Scanner carriage drive belt
[C] Scanner HP sensor [G] Scanner motor
[D] Scanner carriage
• Automatic paper size detection is not available because this model has no APS (sensor that detects
original’s paper size) in the scanner.
Light Source and Exposure
This model uses an LED for the light source. Light from the LED array board (LEDB) [A] goes to the original
via the light guiding panel [B] and the reflector [C]. Then from the original, the light follows the light path to
the CCD.
The elements in the array are more densely spaced at the ends than at the center, to make sure that enough light
reaches the left and right edges of the original.
The light reflected from the original travels as follows:
LED exposure -> 1
st
mirror [D] -> 2
nd
mirror [E] -> 3
rd
mirror [F] -> 4
th
mirror [G] -> 5
th
mirror [H] -> Lens [I]
-> CCD [J]
To Next Page
Loading...
