Ricoh PRIPORT VT 2000 Series Service Manual page 38

2. OPTICS/IMAGE PROCESSING
2.1 OVERALL
[D]
Thermal Head
[C]: Shading Plate
[D]: Mirror
[E]: Exposure Glass
[F]: Fluorescent Lamp
The light reflected from the original goes through the lens [A] and is
changed to an electrical signal in the CCD [B].
The electrical signal from the CCD is converted from an analog signal to a
digital signal in the A/D converter.
The converted digital image data is modulated and edited (VT2500) and is
sent to the thermal head control PCB.
[E]
[F]
[C]
Thermal Head
Control
Operation Panel
2-11
[B]
[A]
A/D Converter
Image Processing
Main Board
28 February '91